SLACK

adj. slow, sluggish; inactive; loose, limp; lazy, careless

n. looseness; slowdown in activity, lull, deceleration; loose part; (Slang) prostitute

adv. in a slack manner; limply, loosely; slowly, sluggishly

v. loosen, relieve tension or pressure; shirk, evade; become loose; be careless

Slack may refer to:Slack (project management), a term used in project managementSlack, West Yorkshire, a village in Calderdale, England.Slackware, a Linux distributionSlack, a central belief of the Church of the SubGeniusSlack, lyrics of a crude or bawdy nature in dancehallSlack space, wasted computer disk space caused by storing many files smaller than the disk's cluster size
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Slack loose; not taut. slack cap a can of meat with one of the ends bulging slightly indicating the beginnings of a blown can. [more]Slack - Community and Resources

Noun
1. dust consisting of a mixture of small coal fragments and coal dust and dirt that sifts out when coal is passed over a sieve
(hypernym) debris, dust, junk, rubble, detritus
(derivation) slake
2. 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"
(synonym) slump, drop-off, falloff, falling off
(hypernym) deterioration, decline in quality, declension, worsening
(derivation) slake, abate
3. a stretch of water without current or movement; "suddenly they were in slack water"
(hypernym) stretch
4. the condition of being loose (not taut); "he hadn't counted on the slackness of the rope"
(synonym) slackness
(hypernym) looseness, play
5. a cord or rope or cable that is hanging loosely; "he took up the slack"
(hypernym) cord
Verb
1. avoid responsibilities and work, be idle
(hypernym) fiddle, shirk, shrink from, goldbrick
(derivation) slacker, shirker
2. be inattentive to, or neglect; "He slacks his attention"
(hypernym) neglect
(derivation) shirking, slacking, soldiering, goofing off, goldbricking
3. release tension on; "slack the rope"
(hypernym) loosen, loose
4. make less active or fast; "He slackened his pace as he got tired"; "Don't relax your efforts now"
(synonym) slacken, slack up, relax
(hypernym) decrease, lessen, minify
(derivation) slump, drop-off, falloff, falling off
5. become slow or slower; "Production slowed"
(synonym) slow, slow down, slow up, slacken
(hypernym) weaken
(derivation) slump, drop-off, falloff, falling off
6. make less active or intense
(synonym) slake, abate
(hypernym) decrease, lessen, minify
(derivation) slump, drop-off, falloff, falling off
7. become less in amount or intensity; "The storm abated"; "The rain let up after a few hours"
(synonym) abate, let up, slack off, die away
(hypernym) decrease, diminish, lessen, fall
8. cause to heat and crumble by treatment with water; "slack lime"
(synonym) slake
(hypernym) hydrate
(hyponym) air-slake
Adjective
1. not tense or taut; "the old man's skin hung loose and gray"; "slack and wrinkled skin"; "slack sails"; "a slack rope"
(synonym) loose
(similar) lax
2. lacking in strength or firmness or resilience; "flaccid muscles"; "took his lax hand in hers"; "gave a limp handshake"; "a limp gesture as if waving away all desire to know" G.K.Chesterton; "a slack grip"
(synonym) flaccid, lax, limp
(similar) weak
3. flowing with little speed as e.g. at the turning of the tide; "slack water"
(similar) standing(a)
4. lacking in rigor or strictness; "such lax and slipshod ways are no longer acceptable"; "lax in attending classes"; "slack in maintaining discipline"
(synonym) lax
(similar) negligent

(v. t.)
Alt. of Slacken
  

(superl.)
Weak; not holding fast; as, a slack hand.
  

(superl.)
Remiss; backward; not using due diligence or care; not earnest or eager; as, slack in duty or service.
  

(superl.)
Not violent, rapid, or pressing; slow; moderate; easy; as, business is slack.
  

(superl.)
Lax; not tense; not hard drawn; not firmly extended; as, a slack rope.
  

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

(n.)
Small coal; also, coal dust; culm.
  

(n.)
A valley, or small, shallow dell.
  

(adv.)
Slackly; as, slack dried hops.
  

(a.)
Alt. of Slacken