careless synonym | Thesaurus.com

Main Entry:	careless
Part of Speech:	adjective
Definition:	without sufficient attention
Synonyms:	absent-minded, abstracted, casual, cursory, forgetful, hasty, heedless, improvident, imprudent, inaccurate, inadvertent, incautious, inconsiderate, indifferent, indiscreet, indolent, injudicious, irresponsible, lackadaisical, lax, loose, mindless, negligent, nonchalant, oblivious, offhand, perfunctory, reckless, regardless, remiss, slipshod, sloppy, thoughtless, unconcerned, unguarded, unheeding, unmindful, unobservant, unthinking, wasteful, disregardful, napping, pococurante, uncircumspect, unreflective
Notes:	carefree means free of trouble and worry and care while careless means marked by lack of attention or consideration or forethought or thoroughness; not careful
Antonyms:	accurate, attentive, careful, cautious, concerned, mindful, painstaking, prudent, ready, thoughtful

Main Entry:	careless
Part of Speech:	adjective
Definition:	artless
Synonyms:	casual, modest, naive, natural, nonchalant, simple, unstudied
Antonyms:	cautious, guarded, kind, mindful, scrupulous

Main Entry:	absent-minded
Part of Speech:	adjective
Definition:	out to lunch
Synonyms:	absent, absorbed, abstracted, careless, daydreaming, distracted, dreaming, dreamy, engrossed, faraway, forgetful, heedless, inattentive, lost, oblivious, preoccupied, remote, removed, scatterbrained, surroundings, unconscious, unheeding, unmindful, unobservant, unthinking, withdrawn, airheaded, airheaded, bemused, distrait, goofing off, head in the clouds, inconscient, mooning, moony, out to lunch, pipe dreaming, space cadet, spacey, spacey, unaware of events, woolgathering
Antonyms:	alert, attentive, aware

Main Entry:	aimless
Part of Speech:	adjective
Definition:	having no goal
Synonyms:	accidental, any which way, blind, capricious, careless, casual, chance, desultory, erratic, fanciful, fickle, flighty, fortuitous, frivolous, haphazard, heedless, hit-or-miss*, indecisive, indiscriminate, irresolute, pointless, purposeless, random, shiftless, stray, thoughtless, unavailing, unplanned, unpredictable, vagrant, wandering, wanton, wayward, bits-and-pieces, directionless, drifting, fits and starts, goalless, objectless, undirected, unguided
Antonyms:	determined, directed, pointed, purposeful, resolute, goal-oriented, motivated

* = informal/non-formal usage

Main Entry:	callous
Part of Speech:	adjective
Definition:	cruel, insensitive
Synonyms:	apathetic, careless, cold, cold-blooded, hard, hard-boiled, hardened, hardhearted, heartless, impassive, impenitent, indifferent, inflexible, insensate, insensible, insensitive, obdurate, soulless, spiritless, stiff, stony, stubborn, thick-skinned, torpid, tough, unaffected, unbending, uncaring, unconcerned, unfeeling, unresponsive, unsympathetic, blind to, case-hardened, deaf to, hard-bitten, indurated, insentient, inured, toughened, uncompassionate, unimpressionable, unsusceptible
Antonyms:	compassionate, feeling, kind, nice, sensitive, sympathetic, tender

Main Entry:	capricious
Part of Speech:	adjective
Definition:	given to sudden behavior change
Synonyms:	arbitrary, careless, contrary, crotchety, effervescent, erratic, every which way, fanciful, fickle, fitful, flaky, flighty, freakish, helter-skelter, impulsive, inconstant, kinky, mercurial, moody, mutable, odd, picky, punchy, queer, quirky, temperamental, ticklish, unpredictable, unreasonable, unstable, variable, volatile, wayward, whimsical, any way the wind blows, blowing hot and cold, changeful, gaga, humorsome, lubricious, notional, up and down, vagarious, yo-yo
Antonyms:	constant, dependable, sensible, staid, steadfast, steady

* = informal/non-formal usage

Main Entry:	carefree
Part of Speech:	adjective
Definition:	lighthearted, untroubled
Synonyms:	airy, blithe, breezy, buoyant, calm, careless, cheerful, cheery, cool, easy, happy, happy-go-lucky, insouciant, jaunty, jovial, radiant, secure, sunny, at ease, easy-going, feelgood, laid back, unanxious, unbothered
Antonyms:	anxious, heavyhearted, troubled, worried

Main Entry:	cursory
Part of Speech:	adjective
Definition:	casual, hasty
Synonyms:	brief, careless, desultory, fast, half-baked, haphazard, hit or miss, hurried, offhand, passing, perfunctory, quick, random, rapid, shallow, short, sketchy, slapdash, slight, sloppy, speedy, summary, superficial, swift, uncritical, depthless, half-assed
Antonyms:	complete, meticulous, painstaking, perfect, thorough, unhurried

* = informal/non-formal usage

Main Entry:	delinquent
Part of Speech:	adjective
Definition:	irresponsible, defaulting
Synonyms:	behind, blamable, blameworthy, careless, censurable, criminal, culpable, derelict, faulty, guilty, lax, neglectful, negligent, overdue, red-handed*, remiss, reprehensible, shabby, slack, tardy, unpaid, defaultant, disregardful, offending, procrastinating
Antonyms:	careful, responsible, behaving

* = informal/non-formal usage

Main Entry:	fallible
Part of Speech:	adjective
Definition:	able or prone to err
Synonyms:	careless, deceptive, errant, erring, faulty, frail, heedless, human, ignorant, imperfect, liable, mortal, questionable, uncertain, unreliable, untrustworthy, weak, errable, in question
Antonyms:	certain, correct, definite, infallible, perfect, reliable, strong, sure, unerring

Main Entry:	feckless
Part of Speech:	adjective
Definition:	without purpose
Synonyms:	aimless, carefree, careless, feeble, fustian, futile, good-for-nothing*, hopeless, incautious, incompetent, ineffective, ineffectual, irresponsible, meaningless, reckless, shiftless, useless, weak, wild, worthless, uncareful
Antonyms:	competent, effective, effectual, efficient, purposeful, responsible, strong, useful

* = informal/non-formal usage

Main Entry:	forgetful
Part of Speech:	adjective
Definition:	tending to not remember
Synonyms:	absent, absent-minded, abstracted, careless, distracted, dreamy, heedless, inattentive, lax, neglectful, negligent, oblivious, preoccupied, remiss, slack, sloppy, unmindful, unwitting, airheaded, amnemonic, amnesic, asleep on the job, bemused, like an absent-minded professor, looking out window, mooning, moony, nirvanic, not on the job, out of it, out to lunch, pipe dreaming, woolgathering
Antonyms:	attentive, mindful, remembering, recalling, retentive

Main Entry:	giddy
Part of Speech:	adjective
Definition:	silly, impulsive
Synonyms:	brainless, capricious, careless, changeable, dizzy, empty-headed, erratic, fickle, flighty, frivolous, heedless, inconstant, irresolute, irresponsible, lightheaded, punchy, reckless, scatterbrained, skittish, slaphappy, swimming, thoughtless, unbalanced, unsettled, unstable, unsteady, vacillating, volatile, whimsical, whirling, wild, woozy*, bemused, bubbleheaded, changeful, ditzy, flustered, gaga, reeling
Antonyms:	calm, careful, level-headed, sensible, serious

* = informal/non-formal usage

Main Entry:	haphazard
Part of Speech:	adjective
Definition:	without plan or organization
Synonyms:	accidental, aimless, any which way, arbitrary, careless, casual, chance, desultory, devil-may-care, disorderly, disorganized, erratic, fluke, helter-skelter, hit-or-miss, incidental, indiscriminate, irregular, loose, offhand, purposeless, random, reckless, slapdash, slipshod, spontaneous, sudden, unconcerned, unconscious, uncoordinated, unexpected, unorganized, unpremeditated, unthinking, willy-nilly, all over the map, any old way, designless, unconsidered, unmethodical, unsystematic
Antonyms:	careful, intentional, methodical, organized, planned, straight, systematic, designed, thought-out

* = informal/non-formal usage

Main Entry:	harebrained
Part of Speech:	adjective
Definition:	stupid, unthinking
Synonyms:	absurd, asinine, barmy, bizarre, careless, changeable, crazy, dizzy, empty-headed, featherbrained, flighty, foolish, frivolous, giddy, half-baked, heedless, inane, irresponsible, loony, mindless, preposterous, rash, reckless, scatterbrained, unstable, unsteady, wacky*, wild, rattlebrained
Antonyms:	brainy, intelligent, reasonable, sensible, smart, thoughtful

* = informal/non-formal usage

Main Entry:	harum-scarum
Part of Speech:	adjective
Definition:	reckless
Synonyms:	carefree, careless, daring, disorderly, erratic, flighty, foolhardy, giddy, haphazard, hasty, imprudent, irresponsible, negligent, rash, regardless, thoughtless, wild, light-minded, romping, scatty

Main Entry:	hasty
Part of Speech:	adjective
Definition:	speedy; without much thought
Synonyms:	abrupt, agile, brash, breakneck, brief, brisk, careless, cursory, eager, expeditious, fast, fiery, fleet, fleeting, foolhardy, headlong, heedless, hurried, ill-advised, impatient, impetuous, impulsive, incautious, inconsiderate, madcap, on the double, passing, perfunctory, precipitate, prompt, pronto, quick, quickie, rapid, rash, reckless, rushed, short, slapdash, snappy, sudden, superficial, swift, thoughtless, urgent, PDQ, chop-chop*, harefooted, quickened, slambang
Antonyms:	delayed, lazy, slow, lingering, loitering

* = informal/non-formal usage

Main Entry:	imprudent
Part of Speech:	adjective
Definition:	without much thought
Synonyms:	brash, careless, foolhardy, foolish, heedless, ill-advised, impolitic, improvident, incautious, inconsiderate, indiscreet, inexpedient, injudicious, irresponsible, rash, reckless, temerarious, thoughtless, unthinking, unwise, ill-considered, ill-judged, leaving self wide open, off the deep end, overhasty, playing with fire, unadvisable
Antonyms:	careful, cautious, discreet, prudent, wise

Main Entry:	impulsive
Part of Speech:	adjective
Definition:	tending to act without thought
Synonyms:	abrupt, ad-lib, automatic, careless, devil-may-care, emotional, extemporaneous, flaky, hasty, headlong, impetuous, instinctive, intuitive, involuntary, mad, offhand, passionate, precipitate, quick, rash, spontaneous, sudden, swift, unexpected, unpredictable, unpremeditated, up-and-down, violent, gone off deep end, hot-and-cold, jumping the gun, unconsidered, unmeditated, unprompted, winging it
Antonyms:	cautious, considering, heedful, thoughtful, wise, premeditative

* = informal/non-formal usage

Main Entry:	inaccurate
Part of Speech:	adjective
Definition:	erroneous
Synonyms:	all wet, careless, counterfactual, defective, discrepant, doesn't wash, fallacious, false, faulty, imprecise, in error, incorrect, inexact, mistaken, off, off base, out, specious, unfaithful, unreliable, unsound, untrue, way-off, wide, wild, wrong
Antonyms:	accurate, correct, right