careless

careless adj., adv. 1) negligent. 2) the opposite of careful. A careless act can result in liability for damages to others. (See: negligent, negligence, care)

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careless adjective casual, cursory, disregardful, hasty, heedless, hurried, impetuous, improvident, imprudent, impulsive, inadvertent, inattentive, incautious, inconsiderate, indifferent, indiscreet, injudicious, irresponsible, lackadaisical, lax, loose, neglectful, negligent, nonchalant, oblivious, overhasty, pococurante, precipitant, precipitate, rash, reckless, regardless, remiss, slack, slipshod, sloppy, temerarious, thoughtless, unapprehensive, uncircumspect, unconcerned, unguarded, unmindful, unobservant, unthinking, unwary, wasteful
Associated concepts: careless and imprudent manner, careeess and negligent manner, grossly careless, negligence, recklessly careless, standard of care, wantonly careless

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See also: blind, cursory, derelict, disorderly, heedless, ill-judged, impolitic, improvident, imprudent, impulsive, inaccurate, inadvertent, inexact, lax, negligent, oblivious, perfunctory, prodigal, reckless, remiss, slipshod, superficial, thoughtless, undependable, unpolitic, wanton