Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun slack

6 senses of slack

Sense 1
slack -- (dust consisting of a mixture of small coal fragments and coal dust and dirt that sifts out when coal is passed over a sieve)
       => debris, dust, junk, rubble, detritus -- (the remains of something that has been destroyed or broken up)

Sense 2
slump, slack, drop-off, falloff, falling off -- (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")
       => deterioration, decline in quality, declension, worsening -- (process of changing to an inferior state)

Sense 3
slack, slack water -- (a stretch of water without current or movement; "suddenly they were in a slack and the water was motionless")
       => stretch -- (a large and unbroken expanse or distance; "a stretch of highway"; "a stretch of clear water")

Sense 4
mire, quagmire, quag, morass, slack -- (a soft wet area of low-lying land that sinks underfoot)
       => bog, peat bog -- (wet spongy ground of decomposing vegetation; has poorer drainage than a swamp; soil is unfit for cultivation but can be cut and dried and used for fuel)

Sense 5
slack, 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")

Sense 6
slack -- (a cord or rope or cable that is hanging loosely; "he took up the slack")
       => cord -- (a line made of twisted fibers or threads; "the bundle was tied with a cord")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb slack

8 senses of slack

Sense 1
slack -- (avoid responsibilities and work, be idle)
       => fiddle, shirk, shrink from, goldbrick -- (avoid (one's assigned duties); "The derelict soldier shirked his duties")

Sense 2
slack -- (be inattentive to, or neglect; "He slacks his attention")
       => neglect -- (fail to attend to; "he neglects his children")

Sense 3
slack -- (release tension on; "slack the rope")
       => loosen, loose -- (make loose or looser; "loosen the tension on a rope")

Sense 4
slack, slacken, slack up, relax -- (make less active or fast; "He slackened his pace as he got tired"; "Don't relax your efforts now")
       => decrease, lessen, minify -- (make smaller; "He decreased his staff")

Sense 5
slow, slow down, slow up, slack, slacken -- (become slow or slower; "Production slowed")
       => weaken -- (become weaker; "The prisoner's resistance weakened after seven days")

Sense 6
slake, abate, slack -- (make less active or intense)
       => decrease, lessen, minify -- (make smaller; "He decreased his staff")

Sense 7
abate, let up, slack off, slack, die away -- (become less in amount or intensity; "The storm abated"; "The rain let up after a few hours")
       => decrease, diminish, lessen, fall -- (decrease in size, extent, or range; "The amount of homework decreased towards the end of the semester"; "The cabin pressure fell dramatically"; "her weight fell to under a hundred pounds"; "his voice fell to a whisper")

Sense 8
slack, slake -- (cause to heat and crumble by treatment with water; "slack lime")
       => hydrate -- (cause to be hydrated; add water or moisture to; "hydrate your skin")

Antonyms of adj slack

3 senses of slack

Sense 1
loose, slack -- (not tense or taut; "the old man's skin hung loose and grey"; "slack and wrinkled skin"; "slack sails"; "a slack rope")

INDIRECT (VIA lax) -> tense -- (taut or rigid; stretched tight; "tense piano strings")

Sense 2
slack -- (flowing with little speed as e.g. at the turning of the tide; "slack water")

INDIRECT (VIA standing) -> running -- ((of fluids) moving or issuing in a stream; "as mountain stream with freely running water"; "hovels without running water")

Sense 3
lax, slack -- (lacking in rigor or strictness; "such lax and slipshod ways are no longer acceptable"; "lax in attending classes"; "slack in maintaining discipline")

INDIRECT (VIA negligent) -> diligent -- (characterized by care and perseverance in carrying out tasks; "a diligent detective investigates all clues"; "a diligent search of the files")

Similarity of adj slack

3 senses of slack

Sense 1
loose, slack -- (not tense or taut; "the old man's skin hung loose and grey"; "slack and wrinkled skin"; "slack sails"; "a slack rope")
       => lax (vs. tense) -- (lacking in strength or firmness or resilience; "a lax rope"; "a limp handshake")

Sense 2
slack -- (flowing with little speed as e.g. at the turning of the tide; "slack water")
       => standing (prenominal) (vs. running) -- ((of fluids) not moving or flowing; "mosquitoes breed in standing water")

Sense 3
lax, slack -- (lacking in rigor or strictness; "such lax and slipshod ways are no longer acceptable"; "lax in attending classes"; "slack in maintaining discipline")
       => negligent (vs. diligent) -- (characterized by neglect and undue lack of concern; "negligent parents"; "negligent of detail"; "negligent in his correspondence")