slack

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adjective

Definition of SLACK

1

failing to give proper care and attention <a building contractor known mainly for his firm's slack workmanship and slipshod construction>

Synonyms careless, derelict, disregardful, lax, lazy, neglectful, neglecting, remiss, slack

Related Words heedless, incautious, irresponsible, reckless, wild; unguarded, unwary; forgetful; disregardful, disregarding, inattentive, oblivious, thoughtless, unheeding, unmindful, unthinking; apathetic, disinterested, indifferent, unconcerned, uninterested; delinquent; loose

Near Antonyms meticulous, painstaking, punctilious; cautious, chary, circumspect, gingerly, guarded; alert, heedful, heeding, mindful, observant, regardful, regarding, vigilant, wary, watchful; foresighted, forethoughtful, provident, responsible; thinking, thoughtful; concerned, interested

Antonyms attentive, careful, conscientious, nonnegligent

2

not bound by rigid standards <slack supervision on the project>

Synonyms flexible, lax, loose, relaxed, slack, unrestrained, unrestricted

Related Words careless, derelict, heedless, irresponsible, lazy, neglectful, negligent, remiss, slipshod, sloppy, sloven, slovenly, unfussy

Near Antonyms constrained, restrained, restricted, tight; careful, conscientious, exact, fussy, meticulous, painstaking, punctilious, scrupulous; implacable, inflexible

Antonyms hard, harsh, rigid, rigorous, severe, stern, strict

3

not tightly fastened, tied, or stretched <left the ropes slack>

Synonyms insecure, lax, loosened, relaxed, slack, slackened, unsecured

Related Words detached, free, unattached, unbound, undone, unfastened, untied; baggy, blousy, saggy

Near Antonyms constrained, restrained; attached, bound, fastened, tied; fast, firm, jammed, snug, stuck, wedged

Antonyms taut, tense, tight