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
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
noun.
a stretch of water without current or movement
suddenly they were in a slack and the water was motionless
Synonym: slack water
noun.
a soft wet area of low-lying land that sinks underfoot
Synonym: mire, morass, quag, quagmire
noun.
the quality of being loose (not taut)
he hadn't counted on the slackness of the rope
Synonym: slackness
noun.
a cord or rope or cable that is hanging loosely
he took up the slack
verb.
avoid responsibilities and work, be idle
verb.
be inattentive to, or neglect
He slacks his attention
verb.
release tension on
slack the rope
verb.
make less active or fast
He slackened his pace as he got tired|Don't relax your efforts now
verb.
become slow or slower
Production slowed
verb.
make less active or intense
Synonym: abate, slake
verb.
become less in amount or intensity
The storm abated|The rain let up after a few hours
verb.
cause to heat and crumble by treatment with water
slack lime
Synonym: slake
adj.
not tense or taut
the old man's skin hung loose and grey|slack and wrinkled skin|slack sails|a slack rope|a slack grip
Synonym: loose
adj.
flowing with little speed as e.g. at the turning of the tide
slack water
adj.
lacking in rigor or strictness
such lax and slipshod ways are no longer acceptable|lax in attending classes|slack in maintaining discipline
Synonym: lax