slack

Synonyms: dull easy feeble flabby flaccid flexible flimsy inert infirm laggard lax leisurely limp not taut passive quaggy quiet relaxed sloppy slow slow-moving sluggish soft supine unsteady weak

Antonyms: rigid stiff taut tight

Synonyms: asleep on the job behindhand careless delinquent derelict dilatory disregardful dormant dull easygoing fainéant idle inactive inattentive indolent inert lackadaisical lax lethargic neglectful not busy permissive quiescent quiet regardless remiss slothful slow slowmoving sluggish stagnant tardy

Antonyms: active alert disciplined

Synonyms: give leeway play room slackening slowdown slow-up

Antonyms: rigidity stiffness tautness tightness