If you slow down at the end of a race, you slack off. When you use slack this way, it means to reduce your speed, to be sluggish, or to be negligent.
Small coal; also, coal dust; culm.
Noun
a cord or rope or cable that is hanging loosely; "he took up the slack"
Noun
the condition of being loose (not taut); "he hadn''t counted on the slackness of the rope"
Noun
a stretch of water without current or movement; "suddenly they were in slack water"
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
dust consisting of a mixture of small coal fragments and coal dust and dirt that sifts out when coal is passed over a sieve
Verb
cause to heat and crumble by treatment with water; "slack lime"
Verb
become less in amount or intensity; "The storm abated"; "The rain let up after a few hours"
Verb
make less active or intense
Verb
become slow or slower; "Production slowed"
Verb
make less active or fast; "He slackened his pace as he got tired"; "Don''t relax your efforts now"
Verb
release tension on; "slack the rope"
Verb
be inattentive to, or neglect; "He slacks his attention"
Verb
avoid responsibilities and work, be idle
Adjective S.
lacking in rigor or strictness; "such lax and slipshod ways are no longer acceptable"; "lax in attending classes"; "slack in maintaining discipline"
Adjective S.
flowing with little speed as e.g. at the turning of the tide; "slack water"
Adjective S.
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"
Adjective S.
not tense or taut; "the old man''s skin hung loose and gray"; "slack and wrinkled skin"; "slack sails"; "a slack rope"
n.
Small coal; also, coal dust; culm.
n.
A valley, or small, shallow dell.
superl.
Lax; not tense; not hard drawn; not firmly extended;
as, a slack rope.
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.
adv.
Slackly; as, slack dried hops.
n.
The part of anything that hangs loose, having no strain upon
it; as, the slack of a rope or of a sail.
a.
Alt. of Slacken
v. t.
Alt. of Slacken
Slack
Slack
Slack
The Lord is not slack concerning his promise, as some men count slackness.4.
Csar . . . about sunset, hoisting sail with a slack southwest, at midnight was becalmed.
Slack
Slack
Small coal; also, coal dust; culm.
A valley, or small, shallow dell.
Lax; not tense; not hard drawn; not firmly extended;
Slackly;
The part of anything that hangs loose, having no strain upon it;
Usage Examples
In marriage, a man becomes slack and selfish, and undergoes a fatty degeneration of his moral being.
Misspelled Formslack, aslack, wslack, eslack, dslack, xslack, zslack, alack, wlack, elack, dlack, xlack, zlack, salack, swlack, selack, sdlack, sxlack, szlack, sklack, solack, splack, s:lack, skack, soack, spack, s:ack, slkack, sloack, slpack, sl:ack, slqack, slwack, slsack, slzack, slqck, slwck, slsck, slzck, slaqck, slawck, slasck, slazck, slaxck, sladck, slafck, slavck, sla ck, slaxk, sladk, slafk, slavk, sla k, slacxk, slacdk, slacfk, slacvk, slac k, slacjk, slacik, slacok, slaclk, slacmk, slacj, slaci, slaco, slacl, slacm, slackj, slacki, slacko, slackl, slackm.
Other Usage ExamplesI think I'm a fun flatmate. I'm always cheerful. I go on tour with my band so it's 12 people on one bus and I feel like I'm the one who's happy in the morning. I'm not a chaotic person, but I might slack off on doing the dishes from time to time.