(redirected from object constancy)
Also found in: Thesaurus, Medical, Encyclopedia.


1. Steadfastness, as in purpose or affection; faithfulness.
2. The condition or quality of being constant; changelessness.
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.


1. the quality of having a resolute mind, purpose, or affection; steadfastness
2. freedom from change or variation; stability
3. (Psychology) psychol the perceptual phenomenon in which attributes of an object appear to remain the same in a variety of different presentations, e.g., a given object looks roughly the same size regardless of its distance from the observer
4. (Environmental Science) ecology the frequency of occurrence of a particular species in sample plots from a plant community
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈkɒn stən si)

1. the quality of being unchanging or unwavering, as in purpose, love, or loyalty.
2. uniformity or regularity, as in qualities or conditions; stability.
[1520–30; < Latin]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.



dyed-in-the-wool Confirmed, inveterate; complete, thorough, unmitigated, out-and-out. When wool is dyed before being made into yarn, its color is more firmly fixed and lasting. A variant of this expression appeared in Sir Thomas North’s translation of Plutarch’s Lives of the Noble Grecians and Romans (1579):

He had … through institution and education (as it were) died in wool the manners of children.

hard-and-fast Ironclad, binding, strict, rigid, unbending. The literal, nautical sense of the term denotes a ship on shore or aground, stuck and immovable. It is probably this sense that gave rise to the figurative meaning in popular use today. Both the figurative and literal meanings date from the late 19th century.

man for all seasons A reliable, steadfast male; a man of principle who retains his integrity regardless of the situation. This expression alludes to a man who is unruffled by vicissitudes and who remains constant despite changing circumstances, like the weather. The phrase was popularized when Robert Bolt used it as the title of his dramatization of the life of Sir Thomas More (1960).

regular brick An agreeable, sincere male; a regular guy. This expression, referring to the solid, unvariegated constitution of a brick, describes a man who is genuinely amiable, unaffected, and reliable.

I don’t stick to declare Father Dick … was a regular brick. (Richard H. Barham, The Ingoldsby Legends, 1845)

through thick and thin Through difficulties or adversity, in spite of any or all obstacles; faithfully, unwaveringly. According to the OED, thick and thin was originally thicket and thin wood. Thus this expression denoted an actual physical obstacle, as in the following quotation from Spenser’s Faerie Queene:

His tireling jade he fiercely forth did push Through thick and thin, both over bank and bush.

Currently through thick and thin is used figuratively as well, referring to any conceivable obstacle, and in context, connoting faithfulness.

There’s five hundred men here to back you up through thick and thin. (T. H. Hall Caine, The Manxman, 1894)

true-blue Loyal, faithful; steadfast, staunch, unwavering, constant.

The Old Beau is true-blue, to the high-flown principles [of] King Edward’s First Protestant Church. (Edmund Hickeringill, Priest-craft, 1705)

The color blue has long been the symbol of truth and constancy. Some conjecture the association arose because of the renowned fastness of Coventry blue dye. According to the OED, true-blue was applied to the Scottish Presbyterian or Whig party of the 17th century, the Covenanters having assumed blue as their partisan color in opposition to the royal red. Their doing so may have been connected with Numbers 15:38 of the Bible, in which the Lord commands Moses to have the Israelites put a blue ribbon on the fringes of the borders of their garments as a reminder to keep His commandments.

Picturesque Expressions: A Thematic Dictionary, 1st Edition. © 1980 The Gale Group, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.constancy - the quality of being enduring and free from change or variation; "early mariners relied on the constancy of the trade winds"
unchangeability, unchangeableness, unchangingness, changelessness - the quality of being unchangeable; having a marked tendency to remain unchanged
invariance - the nature of a quantity or property or function that remains unchanged when a given transformation is applied to it; "the invariance of the configuration under translation"
metastability - the quality of a physical system that persists in its existing equilibrium when undisturbed (or only slightly disturbed) but able to pass to a more stable equilibrium when sufficiently disturbed
monotony - constancy of tone or pitch or inflection
changefulness, inconstancy - the quality of being changeable and variable
2.constancy - (psychology) the tendency for perceived objects to give rise to very similar perceptual experiences in spite of wide variations in the conditions of observation
perception - the process of perceiving
brightness constancy - the tendency for a visual object to be perceived as having the same brightness under widely different conditions of illumination
color constancy, colour constancy - the tendency for a color to look the same under widely different viewing conditions
shape constancy - the tendency to perceive the shape of a rigid object as constant despite differences in the viewing angle (and consequent differences in the shape of the pattern projected on the retina of the eye)
size constancy - the tendency to perceive the veridical size of a familiar object despite differences in their distance (and consequent differences in the size of the pattern projected on the retina of the eye)
psychological science, psychology - the science of mental life
3.constancy - faithfulness and dependability in personal attachments (especially sexual fidelity)
faithfulness, fidelity - the quality of being faithful
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


1. steadiness, stability, regularity, uniformity, perseverance, firmness, permanence, fixedness Climate reflects a basic struggle between constancy and change.
2. faithfulness, loyalty, devotion, fidelity, dependability, trustworthiness, steadfastness Even before they were married, she had worried about his constancy.
"But I am constant as the northern star"
"Of whose true-fixed and resting quality"
"There is no fellow in the firmament" [William Shakespeare Julius Caesar]
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002


Faithfulness or devotion to a person, a cause, obligations, or duties:
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.
ثَبات، إخْلاص
içten bağlılıksüreklilik


[ˈkɒnstənsɪ] N
1. (= regularity) [of temperature etc] → constancia f
2. (= faithfulness) → fidelidad f
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


[ˈkɒnstənsi] n
(= unchanging quality) → constance f
(= fidelity) [person] → fidélité f
Collins English/French Electronic Resource. © HarperCollins Publishers 2005


(of support, supporter)Beständigkeit f, → Konstanz f (liter); (of feelings)Unveränderlichkeit f, → Unwandelbarkeit f; (of friend, lover)Treue f; (also constancy of purpose)Ausdauer f
(of temperature etc)Beständigkeit f
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007


[ˈkɒnstnsɪ] n (of friend, affection) → costanza
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995


(ˈkonstənt) adjective
1. never stopping. a constant noise.
2. unchanging. It must be kept at a constant temperature.
3. faithful. He remained constant.
ˈconstantly adverb
ˈconstancy noun
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
References in periodicals archive ?
Complex invariance is a ubiquitous feature of adaptive behavior, as in object constancy where, for example, we see and react to doorways as rectangular whereas the geometrical patterns they present are trapezoidal from all but a few vantage points.
The psychoanalytic developmental archetypes of object permanence, object constancy, and a corrective emotional experience are used as a vehicle to conceptualize therapeutic healing.
The human visual system is equipped with an ability to perceive objects as relatively stable and unchanging despite changing sensory information; this ability is often described as object constancy. However, under some circumstances the object constancy can be out of order.
The achievement of object constancy (knowing that the characteristics of objects are stable) is critical to the achievement of object permanence in tactile learners (Anthony, Bleier, Fazzi, Kish, & Pogrund, 2002; Anthony, Lowry, & Brown, 2004).
In his discussion, Akhtar considers the contents of the office and their links to projections of the analyst's authenticity, the importance of object constancy as represented by the constant presence of familiar objects in the room, the patient's use of space, and the function and meaning of the analyst's waiting room.