| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | accidental |
| Synonyms: | careless, chance, feckless, heedless, irreflective, negligent, not on purpose, reckless, thoughtless, uncaring, unconcerned, undesigned, undevised, unheeding, unintended, unintentional, unmindful, unplanned, unpremeditated, unthinking, unthought, unwitting |
| Antonyms: | advertent, attentive, deliberate, intentional, planned |
| Main Entry: | careless |
| Part of Speech: | adjective |
| Definition: | without sufficient attention |
| Synonyms: | absent-minded, abstracted, casual, cursory, disregardful, forgetful, hasty, heedless, improvident, imprudent, inaccurate, inadvertent, incautious, inconsiderate, indifferent, indiscreet, indolent, injudicious, irresponsible, lackadaisical, lax, loose, mindless, napping, negligent, nonchalant, oblivious, offhand, perfunctory, pococurante, reckless, regardless, remiss, slipshod, sloppy, thoughtless, uncircumspect, unconcerned, unguarded, unheeding, unmindful, unobservant, unreflective, unthinking, wasteful |
| Antonyms: | accurate, attentive, careful, cautious, concerned, mindful, painstaking, prudent, ready, thoughtful |
| Main Entry: | chance |
| Part of Speech: | adjective |
| Definition: | accidental, unforeseeable |
| Synonyms: | adventitious, at random, casual, contingent, fluky, fortuitous, fortunate, happy, inadvertent, incidental, lucky, odd, offhand, unforeseen, unintentional, unlooked for, unplanned |
| Antonyms: | designed, foreseeable, planned, understood |
| Main Entry: | heedless |
| Part of Speech: | adjective |
| Definition: | careless |
| Synonyms: | asleep at the switch, daydreaming, disregardful, fast and loose, feckless, foolhardy, goofing off, impetuous, imprudent, inadvertent, inattentive, incautious, inconsiderate, irreflective, neglectful, negligent, oblivious, out to lunch, precipitate, rash, reckless, slapdash, sloppy, thoughtless, uncaring, unmindful, unobservant, unthinking, unwary |
| Antonyms: | attentive, careful, caring, cautious, concerned, heedful, observant, thoughtful |
| Main Entry: | inattentive |
| Part of Speech: | adjective |
| Definition: | negligent, not paying attention |
| Synonyms: | absent, absentminded, apathetic, blind, bored, careless, distracted, distrait, distraught, diverted, dreamy, faraway, heedless, inadvertent, indifferent, inobservant, listless, lost*, musing, neglectful, oblivious, off-guard, out to lunch, preoccupied, rapt, regardless, remiss, removed, scatterbrained, thoughtless, unconscious, undiscerning, unheeding, unmindful, unnoticing, unobservant, unobserving, unperceiving, unthinking, unwatchful, vague |
| Antonyms: | attentive, heedful, looking, noticing, observant |
| Main Entry: | negligent |
| Part of Speech: | adjective |
| Definition: | careless, indifferent |
| Synonyms: | asleep at switch, behindhand, cursory, delinquent, derelict, discinct, disregardful, forgetful, heedless, inadvertent, inattentive, inconsiderate, incurious, lax, neglectful, nonchalant, offhand, regardless, remiss, slack, slapdash, slipshod, sloppy*, slovenly, thoughtless, unconcerned, unheedful, unmindful, unthinking |
| Antonyms: | attentive, careful, caring, mindful, successful |
| Main Entry: | regardless |
| Part of Speech: | adjective |
| Definition: | indifferent, unconcerned |
| Synonyms: | behindhand, blind, careless, coarse, crude, deaf, delinquent, derelict, disregarding, heedless, inadvertent, inattentive, inconsiderate, insensitive, lax, listless, mindless, neglectful, negligent, nonobservant, rash, reckless, remiss, rude, slack, unfeeling, unheeding, uninterested, unmindful |
| Antonyms: | attentive, concerned, heedful |
| Main Entry: | thoughtless |
| Part of Speech: | adjective |
| Definition: | absent-minded, unobservant |
| Synonyms: | bovine, careless, confused, doltish, dull, empty-headed, flighty, foolish, heedless, ill-advised, ill-considered, imprudent, inadvertent, inane, inattentive, incomprehensible, inept, injudicious, irrational, irreflective, lamebrained, loony, mindless, neglectful, negligent, obtuse, puerile, rash, reckless, regardless, remiss, senseless, silly, stupid, undiscerning, unheeding, unmindful, unreasonable, unreasoning, unreflective, unthinking, vacuous, witless |
| Antonyms: | attentive, heeding, mindful, observant, thoughtful |
| Main Entry: | unconscious |
| Part of Speech: | adjective |
| Definition: | ignorant; automatic |
| Synonyms: | accidental, gut, inadvertent, inattentive, inherent, innate, instinctive, involuntary, latent, lost, reflex, repressed, subconscious, subliminal, suppressed, unaware, uncalculated, undeliberate, unheeding, unintended, unintentional, unmindful, unpremeditated, unrealized, unwitting |
| Antonyms: | aware, conscious, decided, intended, intentional, knowing |