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slack 1

adj. slack·er, slack·est
1. Not tense or taut; loose: a slack rope; slack muscles. See Synonyms at loose.
a. Lacking in activity; not busy: a slack season for the travel business.
b. Moving slowly; sluggish: a slack pace.
3. Lacking in diligence or due care or concern; negligent: a slack worker. See Synonyms at negligent.
4. Flowing or blowing with little speed: a slack current; slack winds.
5. Linguistics Pronounced with the muscles of the tongue and jaw relatively relaxed; lax.
v. slacked, slack·ing, slacks
a. To make looser or less taut: slacked the sail.
b. To make slower: slacked our pace.
2. To be careless or remiss in doing: slack one's duty.
3. To slake (lime).
1. To be or become slack.
2. To be inactive or avoid work: slacked around the house all day.
1. A loose part, as of a rope or sail: hauled in the slack.
2. A period of little activity; a lull: a slack in business.
a. A cessation of movement in a current of air or water.
b. An area of still water.
4. Unused capacity: still some slack in the economy.
5. slacks Casual pants that are not part of a suit.
In a slack manner: a banner hanging slack.
Phrasal Verb:
slack off
1. To decrease in activity or intensity.
2. To work less intensely than is required or expected: slacked off at work and started surfing the internet.
cut/give (someone) some slack
Slang To make an allowance for (someone), as in allowing more time to finish something.

[Middle English slak, from Old English slæc; see slēg- in Indo-European roots.]

slack′ly adv.
slack′ness n.

slack 2

A mixture of coal fragments, coal dust, and dirt that remains after screening coal.

[Middle English sleck.]

slack 3

n. Chiefly British
1. A small dell or hollow.
2. A bog; a morass.

[Middle English slak, from Old Norse slakki.]
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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.slackness - weakness characterized by a lack of vitality or energy
weakness - the property of lacking physical or mental strength; liability to failure under pressure or stress or strain; "his weakness increased as he became older"; "the weakness of the span was overlooked until it collapsed"
2.slackness - the quality of being loose (not taut); "he hadn't counted on the slackness of the rope"
looseness, play - movement or space for movement; "there was too much play in the steering wheel"
3.slackness - the quality of being lax and neglectful
neglectfulness, negligence, neglect - the trait of neglecting responsibilities and lacking concern
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


The state or quality of being negligent:
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.


[ˈslæknɪs] N
1. [of rope etc] → flojedad f, lo flojo
2. [of person] (= laxity) → descuido m, negligencia f; (= laziness) → pereza f, vaguedad f
3. (Comm) → flojedad f, inactividad 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


[ˈslæknɪs] n (= carelessness) → laisser-aller m (= negligence) → incurie f
Collins English/French Electronic Resource. © HarperCollins Publishers 2005


(of rope, reins)Schlaffheit f, → Durchhängen nt
(= laziness)Bummelei f; (= negligence)Nachlässigkeit f, → Schlampigkeit f (inf)
(of business, market etc)Flaute f
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007


[ˈslæknɪs] n (of rope, cable) → mancanza di tensione; (of person) → negligenza; (of trade) → ristagno
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995


(slӕk) adjective
1. loose; not firmly stretched. Leave the rope slack.
2. not firmly in position. He tightened a few slack screws.
3. not strict; careless. He is very slack about getting things done.
4. in industry etc, not busy; inactive. Business has been rather slack lately.
ˈslacken verb
(sometimes with off or up).
1. to make or become looser. She felt his grip on her arm slacken.
2. to make or become less busy, less active or less fast. The doctor told him to slacken up if he wanted to avoid a heart-attack.
ˈslackly adverb
ˈslackness noun
slacks noun plural
trousers, usually loose-fitting, worn informally by men or women. a pair of slacks.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
References in classic literature ?
The former slackness which had shown itself even in his eyes was now replaced by an energetic readiness for action and resistance.
"Go not ungirt and loose, Sancho; for disordered attire is a sign of an unstable mind, unless indeed the slovenliness and slackness is to he set down to craft, as was the common opinion in the case of Julius Caesar.
Was there not the geography of Asia Minor, in which her slackness had often been rebuked by Mr.
He remembered his long travels in Germany, he remembered on his return his growing disapproval of English slackness, her physical and moral decadence.
What those wants were I could not tell, but a fluttering, whispering, bolt-fumbling, luring, loitering some one was reproaching me for my slackness, and through all the dreams I heard the howling of Tietjens in the garden and the thrashing of the rain.
She called him a muddler and a slouch, and other invidious names, for his slackness and his disregard of healthful food.
The mouth, shapeless and toothless, with down-turned corners and lips dry and parchment-like, nevertheless lacked the muscular slackness so usual with age.
From Mans effeminate slackness it begins, Said th' Angel, who should better hold his place By wisdome, and superiour gifts receavd.
Unskilled labour is the first to feel the slackness of hard times, and I had no trades save those of sailor and laundryman.
Irwine; and these religious deficiencies were accompanied by a corresponding slackness in the minor morals, for Bessy belonged unquestionably to that unsoaped lazy class of feminine characters with whom you may venture to "eat an egg, an apple, or a nut." All this she was generally conscious of, and hitherto had not been greatly ashamed of it.
I am not afraid nor out of heart, nor is there any slackness in me.
The residents of Chak Town including Ikhtiar Soomro and others recorded their protest and said that there are many graves of our elders, but drainage water is destroying the graves of our elders owing to slackness of elected representatives and other high ups of the Chak Town.