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
a noticeable deterioration in performance or quality
“the team went into a slump”
“a gradual slack in output”
a stretch of water without current or movement
“suddenly they were in a slack and the water was motionless”
Synonymsslack watera soft wet area of low-lying land that sinks underfoot
the quality of being loose (not taut)
“he hadn't counted on the slackness of the rope”
Synonymsslacknessa cord or rope or cable that is hanging loosely
“he took up the slack”
verb
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”
become slow or slower
“Production slowed”
make less active or intense
become less in amount or intensity
“The storm abated”
“The rain let up after a few hours”
cause to heat and crumble by treatment with water
“slack lime”
Synonymsslake
adjective
Source: WordNet 3.1, Princeton University
