- careless
- adj1. inattentive, inadvertent, unmindful, unthoughtful, unthinking, nonobservant, disre-gardful; unwise, imprudent, injudicious, indiscreet, uncircumspect; unwary, incautious, off guard, unguarded, unheeding, heedless; reckless, rash, temerarious; inconsiderate, uncaring, tactless, uncivil, rude.2. negligent, neglectful, remiss, slack, lax, loose; inaccurate, inexact, incorrect; disorderly, sloppy, untidy, Inf. messy, slovenly, slatternly, Sl. raunchy; unorganized, Inf. harum-scarum, hit-or-miss; casual, slapdash, slipshod, offhand.3. nonchalant, casual, indifferent, perfunctory, blase, devil-may-care, thoughtless, forgetful, absent-minded; lackadaisical, listless, apathetic; free and easy, untroubled, unconcerned, unworried, happy-go-lucky, insouciant.4. sprightly, light-hearted, debonair, jaunty, lively, airy, brisk, carefree. See carefree (defs.2, 3).
A Note on the Style of the synonym finder. 2014.