What does slack mean?

Definitions for slack

Here are all the possible meanings and translations of the word slack.

Princeton's WordNet

  1. slack(noun)

    dust consisting of a mixture of small coal fragments and coal dust and dirt that sifts out when coal is passed over a sieve

  2. slump, slack, drop-off, falloff, falling off(noun)

    a noticeable deterioration in performance or quality

    "the team went into a slump"; "a gradual slack in output"; "a drop-off in attendance"; "a falloff in quality"

  3. slack, slack water(noun)

    a stretch of water without current or movement

    "suddenly they were in a slack and the water was motionless"

  4. mire, quagmire, quag, morass, slack(noun)

    a soft wet area of low-lying land that sinks underfoot

  5. slack, slackness(noun)

    the quality of being loose (not taut)

    "he hadn't counted on the slackness of the rope"

  6. slack(adj)

    a cord or rope or cable that is hanging loosely

    "he took up the slack"

  7. loose, slack(adj)

    not tense or taut

    "the old man's skin hung loose and grey"; "slack and wrinkled skin"; "slack sails"; "a slack rope"

  8. slack(adj)

    flowing with little speed as e.g. at the turning of the tide

    "slack water"

  9. lax, slack(verb)

    lacking in rigor or strictness

    "such lax and slipshod ways are no longer acceptable"; "lax in attending classes"; "slack in maintaining discipline"

  10. slack(verb)

    avoid responsibilities and work, be idle

  11. slack(verb)

    be inattentive to, or neglect

    "He slacks his attention"

  12. slack(verb)

    release tension on

    "slack the rope"

  13. slack, slacken, slack up, relax(verb)

    make less active or fast

    "He slackened his pace as he got tired"; "Don't relax your efforts now"

  14. slow, slow down, slow up, slack, slacken(verb)

    become slow or slower

    "Production slowed"

  15. slake, abate, slack(verb)

    make less active or intense

  16. abate, let up, slack off, slack, die away(verb)

    become less in amount or intensity

    "The storm abated"; "The rain let up after a few hours"

  17. slack, slake(verb)

    cause to heat and crumble by treatment with water

    "slack lime"


  1. slack(Noun)

    Small coal; coal dust.

  2. slack(Noun)

    A valley, or small, shallow dell.

  3. slack(Noun)

    The part of anything that hangs loose, having no strain upon it.

    The slack of a rope or of a sail.

  4. slack(Noun)

    A tidal marsh or shallow, that periodically fills and drains.

  5. slack(Verb)

    To mitigate; to reduce the strength of.

  6. slack(Verb)

    to procrastinate; to be lazy

  7. slack(Verb)

    to refuse or dislike exerting effort

  8. slack(Adverb)


    slack dried hops

  9. slack(Adjective)

    Lax; not tense; not hard drawn; not firmly extended.

    a slack rope

  10. slack(Adjective)

    Weak; not holding fast.

    a slack hand

  11. slack(Adjective)

    Remiss; backward; not using due diligence or care; not earnest or eager.

    slack in duty or service

  12. slack(Adjective)

    Not violent, rapid, or pressing.

    Business is slack.

Webster Dictionary

  1. Slack(noun)

    small coal; also, coal dust; culm

  2. Slack(noun)

    a valley, or small, shallow dell

  3. Slack

    lax; not tense; not hard drawn; not firmly extended; as, a slack rope

  4. Slack

    weak; not holding fast; as, a slack hand

  5. Slack

    remiss; backward; not using due diligence or care; not earnest or eager; as, slack in duty or service

  6. Slack

    not violent, rapid, or pressing; slow; moderate; easy; as, business is slack

  7. Slack(adverb)

    slackly; as, slack dried hops

  8. Slack(noun)

    the part of anything that hangs loose, having no strain upon it; as, the slack of a rope or of a sail

  9. Slack(adj)

    alt. of Slacken

  10. Slack(verb)

    alt. of Slacken

  11. Origin: [Icel. slakki a slope on a mountain edge.]

Chambers 20th Century Dictionary

  1. Slack

    slak, adj. lax or loose: not firmly extended or drawn out: not holding fast, weak: not eager or diligent, inattentive: not violent or rapid, slow.—adv. in a slack manner: partially: insufficiently.—n. that part of a rope, belt, &c. which is slack or loose: a period of inactivity: a slack-water haul of a net.—vs.i. Slack, Slack′en, to become loose or less tight: to be remiss: to abate: to become slower: to fail or flag.—v.t. to make less tight: to loosen: to relax: to remit: to abate: to withhold: to use less liberally: to check: (B.) to delay.—v.t. Slack′-bake, to half-bake.—adj.Slack′-hand′ed, remiss.—n. Slack′-jaw (slang), impudent talk.—adv. Slack′ly.—n. Slack′ness.—adj.Slack′-salt′ed, insufficiently salted.—n. Slack′-wa′ter, ebb-tide: slow-moving water, as that above a dam.—adj. pertaining to slack-water.—Slack away, to ease off freely; Slack-in-stays, slow in going about, of a ship; Slack off, to ease off; Slack up, to ease off: to slow. [A.S. sleac; Sw. slak, Ice. slakr.]

  2. Slack

    slak, n. coal-dross. [Ger. schlacke.]

  3. Slack

    slak, n. (Scot.) a cleft between hills: a common: a boggy place. [Scand., Ice. slakki, a hill-slope.]

The New Hacker's Dictionary

  1. slack

    1. Space allocated to a disk file but not actually used to store useful information. The techspeak equivalent is ‘internal fragmentation’. Antonym: hole. 2. In the theology of the Church of the SubGenius, a mystical substance or quality that is the prerequisite of all human happiness.Since Unix files are stored compactly, except for the unavoidable wastage in the last block or fragment, it might be said that “Unix has no slack”. See ha ha only serious.

Dictionary of Nautical Terms

  1. slack

    The part of a rope or sail that hangs loose.--To slack, is to decrease in tension or velocity; as, "Slack the laniard of our main-stay;" or "The tide slackens."

Anagrams for slack »

  1. lacks

  2. calks

How to pronounce slack?

  1. Alex
    US English

How to say slack in sign language?

  1. slack


  1. Chaldean Numerology

    The numerical value of slack in Chaldean Numerology is: 3

  2. Pythagorean Numerology

    The numerical value of slack in Pythagorean Numerology is: 1

Examples of slack in a Sentence

  1. Recruit Hardy:

    Being a black female and having my degree, I got some slack.

  2. Tomoyuki Suzuki:

    We're seeing very good demand at the moment, we don't have slack.

  3. Book of Proverbs:

    He becometh poor that dealeth with a slack hand but the hand of the diligent maketh rich.

  4. David Mericle:

    Wage growth finally appears to be firming after showing few signs of progress even as slack declined quickly.

  5. Alejandro Ortiz:

    The absence of a potentially notable pop, as seen with traditional IPOs, may also hamper Slack's retail demand.

Images & Illustrations of slack

  1. slackslackslackslackslack

Popularity rank by frequency of use


Translations for slack

From our Multilingual Translation Dictionary

  • trödeln, faulenzen, faul sein, schlaff, bummelnGerman
  • flojo, carbonilla, charco, haraganear, relajarse, carboncillo, flojear, aflojarseSpanish
  • löysästi, huolimaton, hiljainen, hiilipöly, notkelma, löysä, velttoilla, viivytellä, huolimattomasti, veltosti, hiilimurska, veltto, notko, kluuvi, vetelehtiä, löysäilläFinnish
  • gravierFrench
  • leibideach, ligeanIrish
  • सुस्तHindi
  • tatetate, pūngoheMāori
  • tam, week, slak, slecht gemaakt, slap, treuzelenDutch
  • frouxoPortuguese
  • лодырничать, лениться, небрежный, слабина, слабый, расслабленный, бездельничать, сачковать, ненатянутыйRussian
  • mlohavo, odugovlačiti, opušteno, labavoSerbo-Croatian

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"slack." Definitions.net. STANDS4 LLC, 2019. Web. 17 Oct. 2019. <https://www.definitions.net/definition/slack>.

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