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n. pl. in·ten·si·ties
1. Exceptionally great concentration, power, or force.
2. Physics The amount or degree of strength of electricity, light, heat, or sound per unit area or volume.
a. The strength of a color, especially the degree to which it lacks its complementary color.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


n, pl -ties
1. the state or quality of being intense
2. extreme force, degree, or amount
3. (General Physics) physics
a. a measure of field strength or of the energy transmitted by radiation. See radiant intensity, luminous intensity
b. (of sound in a specified direction) the average rate of flow of sound energy, usually in watts, for one period through unit area at right angles to the specified direction. Symbol: I
4. (Geological Science) geology Also called: earthquake intensity a measure of the size of an earthquake based on observation of the effects of the shock at the earth's surface. Specified on the Mercalli scale. See Mercalli scale, Richter scale
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ɪnˈtɛn sɪ ti)

n., pl. -ties.
1. the quality or condition of being intense.
2. great energy, strength, concentration, or vehemence, as of activity.
3. a high or extreme degree, as of cold or heat.
4. the degree or extent to which something is intense.
5. a high degree of emotional excitement; depth of feeling.
6. the strength or sharpness of a color due esp. to its degree of freedom from admixture with its complementary color.
7. Physics. magnitude, as of energy or a force per unit of area, volume, time, etc.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


  • heat - As a preliminary race for a sporting contest, it is so called because of its intensity.
  • crescendo - Often mistakenly used to mean "reaching a pinnacle" when, in fact, it should be used only to describe a gradual increase in intensity or volume.
  • resonate, resound - Resonate means "to expand, to intensity, or amplify the sound of," whereas resound means "to throw back, repeat the sound of."
  • fervency, fervor - The intensity of heat or feeling can be described as fervency, from Latin fervere, "boil"; an instance of this heat or feeling is fervor.
Farlex Trivia Dictionary. © 2012 Farlex, Inc. All rights reserved.




  1. Acute as the badness of no woman out in the world thinking about you —Richard Ford
  2. Acute like the flow of hope —Joseph Turnley
  3. As deep into … as a sheep is thick in wool —Anon
  4. Burns like hate —George MacDonald
  5. (Worries and obsessions that) come like hot rivets —Wilfrid Sheed
  6. Deep as first love —Alfred, Lord Tennyson
  7. Deep as earth —Madeleine L’Engle
  8. Deep as hell —Beaumont and Fletcher
  9. Digging in deeper and deeper, like rats in a cheese —Henry Miller
  10. (Lonely and) furious as a hunt —George Garrett
  11. Had a startling intensity of gaze that never wavered from its object, like that of a palmist or a seer —Mary McCarthy
  12. (Curiosity) heating up like an iron —Susan Fromberg Schaeffer
  13. Move through life with the intensity of one for whom each day is the last —Anon
  14. Run deep, like old wounds —William Brammer
  15. Sharp as a pincer —Julia O’Faolain
  16. With the intensity of a cat following a rolling ball of yarn —Ira Berkow on Wade Boggs, Red Sox player’s watching of a pitch, New York Times, October 7, 1986
Similes Dictionary, 1st Edition. © 1988 The Gale Group, Inc. All rights reserved.



back and edge Wholeheartedly, vigorously; entirely, completely. The allusion is to the thin sharpened side of a blade, or “edge,” and the blunt side of the same blade, or “back.” Together the two sides constitute the whole of the blade; thus the figurative extension in meaning to ‘completely,’ ‘wholeheartedly’ ‘with one’s entire self ’

blow up a storm To engage in any activity with such enthusiasm and vigor as to effect a noticeable change in one’s surroundings; also with the implication of being so caught up in the activity as to get carried away one-self. The most plausible explanation says the term comes from jazz trumpeting; another holds it stems from the storm of dust raised from the pit floor by the spectacular beating of wings and flurry of movement in a cockfight. Though blow up a storm appears to be the oldest and still most frequently heard form, up a storm itself is now commonly appended as an adverbial intensifier to many verbs of physical activity—one can work “up a storm,” sing “up a storm,” dance “up a storm,” and so on.

full blast Maximum capacity, strength, volume, or speed; full swing; often in the phrase in or at full blast. In use as early as the 1830s, this phrase apparently originally connoted exaggerated or extreme behavior, appearance, etc., based on the following quotation from Frederick Marryat’s Diary in America II (1839):

“When she came to meeting, with her yellow hat and feathers, wasn’t she in full blast?”

Although the expression’s origin is unknown^ it may be related to the use of blast in relation to machinery: air forced into a furnace by a blower to increase the rate of combustion.

full tilt At maximum speed, force, strength, or capacity; straight at or for, directly. This expression is said to have come from the way knights rode straight for one another at full gallop and with lances tilted when jousting. The phrase, which dates from about 1600, appears in Frederic E. Gretton’s Memory’s Harkback through Haifa-century (1805-58):

The Earl rode full tilt at him as though he would have unhorsed him.

go great guns See PROSPERING.

go to town See PROSPERING.

hammer and tongs Forcefully, violently, strenuously; energetically, vigorously, wholeheartedly. A blacksmith uses tongs to hold the hot iron as he pounds and hammers it into shape. To go at anything hammer and tongs is to exert similar strength and force to accomplish a goal.

head over heels Intensely, completely, totally; rashly, impetuously. This expression, dating from the late 18th century, is a corruption of heels over head, which dates from the 14th century; both relate literally to body movement, as in a somersault. A similar phrase dating from the late 19th century is head over ears, a corruption of over head and ears ‘completely or deeply immersed or involved.’

like a house afire See PACE.

swear like a trooper See PROFANITY.

to beat the band Vigorously, enthusiastically, intently, rapidly. To perform any activity with great force and gusto, so as to drown out or exceed the tempo of the band, as it were. The expression dates from the turn of the century.

tooth and nail Fiercely, vigorously, with all one’s powers and resources. Despite its physical connotations of clawing, biting, and scratching, this phrase is almost always used figuratively. Such usage dates from the 16th century.

with might and main Vigorously, strenuously; using one’s powers and resources to the utmost. The obsolete main is synonymous with might ‘power, strength’ and continues in the language only in this phrase as an intensifier—with might and main being a bit more forceful and somewhat more formal than with all one’s might

Picturesque Expressions: A Thematic Dictionary, 1st Edition. © 1980 The Gale Group, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.intensity - the amount of energy transmitted (as by acoustic or electromagnetic radiation)intensity - the amount of energy transmitted (as by acoustic or electromagnetic radiation); "he adjusted the intensity of the sound"; "they measured the station's signal strength"
radio brightness - the strength of a radio wave picked up by a radio telescope
magnitude - the property of relative size or extent (whether large or small); "they tried to predict the magnitude of the explosion"; "about the magnitude of a small pea"
threshold level - the intensity level that is just barely perceptible
field intensity, field strength - the vector sum of all the forces exerted by an electrical or magnetic field (on a unit mass or unit charge or unit magnetic pole) at a given point in the field
candlepower, light intensity - luminous intensity measured in candelas
acoustic power, sound pressure level - the physical intensity of sound
half-intensity - half the maximum intensity
2.intensity - high level or degree; the property of being intense
forcefulness, strength, force - physical energy or intensity; "he hit with all the force he could muster"; "it was destroyed by the strength of the gale"; "a government has not the vitality and forcefulness of a living man"
severeness, severity, badness - used of the degree of something undesirable e.g. pain or weather
vehemence, emphasis - intensity or forcefulness of expression; "the vehemence of his denial"; "his emphasis on civil rights"
top - the greatest possible intensity; "he screamed at the top of his lungs"
ferocity, fierceness, furiousness, vehemence, violence, wildness, fury - the property of being wild or turbulent; "the storm's violence"
degree, level, grade - a position on a scale of intensity or amount or quality; "a moderate grade of intelligence"; "a high level of care is required"; "it is all a matter of degree"
3.intensity - the magnitude of sound (usually in a specified direction)intensity - the magnitude of sound (usually in a specified direction); "the kids played their music at full volume"
sound property - an attribute of sound
crescendo - (music) a gradual increase in loudness
fortissimo, forte - (music) loud
4.intensity - chromatic purity: freedom from dilution with white and hence vivid in hue
color property - an attribute of color
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


1. force, power, strength, severity, extremity, fierceness The attack was anticipated, but its intensity came as a shock.
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002


Exceptionally great concentration, power, or force, especially in activity:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
شِدَّه، كَثافَه
mikill kraftur/magn


[ɪnˈtensɪtɪ] N
1. (= strength) [of heat, cold, emotion, pain, light] → intensidad f
2. (= passion) [of expression, relationship, debate, fighting] → intensidad f; [of person] → vehemencia f
she looked at me with such intensity thatme miró con tal intensidad que miró de una forma tan intensa que ...
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005


[ɪnˈtɛnsɪti] n
(= strength) [flames, fire] → intensité f; [debate, attack] → intensité f; [feelings] → intensité f
Collins English/French Electronic Resource. © HarperCollins Publishers 2005


nIntensität f; (of feeling, storm also)Heftigkeit f; intensity of a negative (Phot) → Dichte feines Negativs
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007


[ɪnˈtɛnsɪtɪ] nintensità f inv
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995


(inˈtens) adjective
very great. intense heat; intense hatred.
inˈtensely adverb
very much. I dislike that sort of behaviour intensely.
inˈtenseness noun
inˈtensity noun
the quality of being intense. the intensity of the heat.
inˈtensive (-siv) adjective
very great; showing or having great care etc. The police began an intensive search for the murderer; The hospital has just opened a new intensive care unit.
inˈtensively adverb
inˈtensiveness noun
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.


n. intensidad.
English-Spanish Medical Dictionary © Farlex 2012


n (pl -ties) intensidad f
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in classic literature ?
And in a low voice, as the cart went slowly along through the midst of the gazing crowd, she poured forth her soul with the wrestling intensity of a last pleading, for the trembling creature that clung to her and clutched her as the only visible sign of love and pity.
This dazzling carpet, really a reflector, repelled the rays of the sun with wonderful intensity, which accounted for the vibration which penetrated every atom of liquid.
Far ahead I presently heard a deep and sullen roar which increased in volume as I advanced, and then broke upon my ears with all the intensity of its mad fury as I swung round a sharp curve into a dimly lighted stretch of water.
The French army melted away and perished at the same rate from Moscow to Vyazma, from Vyazma to Smolensk, from Smolensk to the Berezina, and from the Berezina to Vilna- independently of the greater or lesser intensity of the cold, the pursuit, the barring of the way, or any other particular conditions.
We have spoken of Pearl's rich and luxuriant beauty -- a beauty that shone with deep and vivid tints, a bright complexion, eyes possessing intensity both of depth and glow, and hair already of a deep, glossy brown, and which, in after years, would be nearly akin to black.
This courageous gentleman and hardy soldier was near swooning from intensity of emotion.
Whether the flitting attendance of the one still and solitary jet had gradually worked upon Ahab, so that he was now prepared to connect the ideas of mildness and repose with the first sight of the particular whale he pursued; however this was, or whether his eagerness betrayed him; whichever way it might have been, no sooner did he distinctly perceive the white mass, than with a quick intensity he instantly gave orders for lowering.
To test the intensity of the light whose nature and cause he could not determine, he took out his watch to see if he could make out the figures on the dial.
"Still he did not reply; but catching a sight of his face as he turned it slightly toward me I was struck by the intensity of his look.
It strikes the mind with varying degrees of force or liveliness according to the varying intensity of the stimulus.
Muffled in the full morning light, the invisible sun was only known by the spread intensity of his place; where his bayonet rays moved on in stacks.
I found myself that the cries were singularly irritating, and they grew in depth and intensity as the afternoon wore on.