Definition of 'slack'
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- dust consisting of a mixture of small coal fragments and coal dust and dirt that sifts out when coal is passed over a sieve
- 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"
Synonyms: slump drop-off falloff falling off
- a stretch of water without current or movement; "suddenly they were in a slack and the water was motionless"
Synonyms: slack water
- a soft wet area of low-lying land that sinks underfoot
Synonyms: mire quagmire quag morass
- the condition of being loose (not taut); "he hadn't counted on the slackness of the rope"
- a cord or rope or cable that is hanging loosely; "he took up the slack"
- avoid responsibilities and work, be idle
- be inattentive to, or neglect; "He slacks his attention"
- release tension on; "slack the rope"
- make less active or fast; "He slackened his pace as he got tired"; "Don't relax your efforts now"
Synonyms: slacken slack up relax
- become slow or slower; "Production slowed"
Synonyms: slow slow down slow up slacken
- make less active or intense
Synonyms: slake abate
- become less in amount or intensity; "The storm abated"; "The rain let up after a few hours"
Synonyms: abate let up slack off die away
- cause to heat and crumble by treatment with water; "slack lime"
- not tense or taut; "the old man's skin hung loose and grey"; "slack and wrinkled skin"; "slack sails"; "a slack rope"
- 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"
Synonyms: flaccid lax limp
- flowing with little speed as e.g. at the turning of the tide; "slack water"
- lacking in rigor or strictness; "such lax and slipshod ways are no longer acceptable"; "lax in attending classes"; "slack in maintaining discipline"