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thought-provoking | thought-reader | thoughtful | thoughtfully | thoughtfulness | thoughtless | thoughtlessly | thoughtlessness | thousand | thousand and one nights | thousand island dressing

thoughtless

 : 
Adjective
 : 
thought=less

CIDE DICTIONARY

thoughtlessadv. 
  •  Lacking thought; careless; inconsiderate; rash; as, a thoughtless person, or act.  [1913 Webster]
  •  Giddy; gay; dissipated.  Johnson.  [1913 Webster]
  •  Deficient in reasoning power; stupid; dull.  [1913 Webster]
    "Thoughtless as monarch oaks that shade the plain."  [1913 Webster]

OXFORD DICTIONARY

thoughtless, adj.
1 careless of consequences or of others' feelings.
2 due to lack of thought.

Derivative
thoughtlessly adv. thoughtlessness n.

THESAURUS

thoughtless

absent-minded, airy, apish, arbitrary, artless, asinine, batty, befooled, beguiled, besotted, blank, blankminded, brainless, brash, buffoonish, calm, capricious, careless, casual, cockeyed, crazy, credulous, cursory, daffy, daft, dazed, degage, discourteous, disregardant, disregardful, distracted, distrait, dizzy, doting, dumb, easygoing, empty, empty-headed, fatuitous, fatuous, featherbrained, featherheaded, feckless, flaky, flippant, fluttery, fond, fool, foolheaded, foolish, forgetful, free and easy, frivolous, fuddled, futile, gaga, giddy, giddy-brained, giddy-headed, giddy-pated, giddy-witted, goofy, grasshopper, gulled, half-assed, happy-go-lucky, harebrain, harebrained, hasty, heedless, hotheaded, idiotic, ill-advised, ill-considered, ill-contrived, ill-devised, ill-gauged, ill-judged, imbecile, impolite, impolitic, improvident, imprudent, inadept, inadvertent, inadvisable, inane, inapt, inattentive, incautious, incogitant, inconsiderate, incurious, indifferent, indiscreet, inefficient, inept, inexpedient, inexpert, infatuated, injudicious, inobservant, insane, insensate, insensitive, insouciant, irrational, kooky, lazy, loony, mad, madcap, maudlin, mediocre, mindless, misadvised, misguided, moronic, myopic, neglectful, negligent, nirvanic, nutty, oblivious, offhand, passive, pedestrian, perfunctory, poor, quietistic, rash, rattlebrained, rattleheaded, rattlepated, reasonless, reckless, regardless, relaxed, remiss, respectless, rude, sappy, scatterbrained, scramblebrained, screwy, selfish, senseless, sentimental, sharp, shatterbrained, shiftless, shortsighted, silly, skill-less, stupid, tactless, thoughtfree, thriftless, tranquil, unaccommodating, unadvised, unapt, uncalculating, uncaring, unceremonious, uncomplaisant, unconsidered, uncooperative, undeft, undexterous, undextrous, undiplomatic, undiscerning, uneconomical, unfacile, unforeseeing, ungracious, unguarded, unheedful, unheeding, unhelpful, unideaed, unintellectual, unintelligent, unmarking, unmindful, unnoticing, unnoting, unobliging, unobservant, unobserving, unoccupied, unprepared, unproficient, unproviding, unready, unreasonable, unreasoning, unreflecting, unreflective, unremarking, unseeing, unsensible, unskillful, unsolicitous, unsound, untactful, unthinking, unthoughtful, unthrifty, unwise, vacant, vacuous, wacky, wet, witless, wrecking

ROGET THESAURUS

thoughtless

Nonpreparation

N nonpreparation, non-preparation, absence of preparation, want of preparation, inculture, inconcoction, improvidence, immaturity, crudity, rawness, abortion, disqualification, nature, state of nature, virgin soil, unweeded garden, neglect, rough copy, germ, raw material, improvisation, unprepared (prepare), without preparation, incomplete, rudimental, embryonic, abortive, immature, unripe, kachcha, raw, green, crude, coarse, rough cast, rough hewn, in the rough, unhewn, unformed, unfashioned, unwrought, unlabored, unblown, uncooked, unboiled, unconcocted, unpolished, unhatched, unfledged, unnurtured, unlicked, untaught, uneducated, uncultivated, untrained, untutored, undrilled, unexercised, deckle- edged, precocious, premature, undigested, indigested, unmellowed, unseasoned, unleavened, unrehearsed, unscripted, extemporaneous, improvised, spontaneous, ad lib, ad libitem, fallow, unsown, untilled, natural, in a state of nature, undressed, in dishabille, en deshabille, unqualified, disqualified, unfitted, ill-digested, unbegun, unready, unarranged, unorganized, unfurnished, unprovided, unequipped, untrimmed, out of gear, out of order, dismantled, shiftless, improvident, unthrifty, thriftless, thoughtless, unguarded, happy-go- lucky, caught napping, unpremeditated, extempore.

Absence or want of Intellect

N absence of Intellect, want of intellect, imbecility brutality, brute force, instinct, brute instinct, stimulus-response loop, conditioned response, instinctive reaction, Pavlovian response, mimicry, aping (imitation), moron, imbecile, idiot, fool, dumb animal, vegetable, brain dead, Adj, unendowed with reason, void of reason, thoughtless, vegetative, moronic, idiotic, brainless, Adv, instinctively, like Pavlov's dog, vegetatively, unendowed with reason, void of reason, thoughtless, vegetative, moronic, idiotic, brainless, instinctively, like Pavlov's dog, vegetatively, V, mimic, ape (imitate), respond instinctively, absence of Intellect, want of intellect, imbecility brutality, brute force, instinct, brute instinct, stimulus-response loop, conditioned response, instinctive reaction, Pavlovian response, mimicry, aping (imitation), moron, imbecile, idiot, fool, dumb animal, vegetable, brain dead, Adj, unendowed with reason, void of reason, thoughtless, vegetative, moronic, idiotic, brainless, Adv, instinctively, like Pavlov's dog, vegetatively, unendowed with reason, void of reason, thoughtless, vegetative, moronic, idiotic, brainless, instinctively, like Pavlov's dog, vegetatively, V, mimic, ape (imitate), respond instinctively.

Incogitancy

N incogitancy, vacancy, inunderstanding, fatuity thoughtlessness, vacuity, couch potato, vegetable, vacant, unintellectual, unideal, unoccupied, unthinking, inconsiderate, thoughtless, mindless, no-brain, vacuous, absent, diverted, irrational narrow-minded, unthought of, undreamt 'of, unconsidered, off one's mind, incogitable, not to be thought of, absence d'esprit, pabulum pictura pascit inani.

Inattention

N inattention, inconsideration, inconsiderateness, oversight, inadvertence, inadvertency, nonobservance, disregard, supineness, etourderie, want of thought, heedlessness, insouciance, abstraction, absence of mind, absorption of mind, preoccupation, distraction, reverie, brown study, deep musing, fit of abstraction, inattentive, unobservant, unmindful, heedless, unthinking, unheeding, undiscerning, inadvertent, mindless, regardless, respectless, listless, blind, deaf, bird-witted, hand over head, cursory, percursory, giddy-brained, scatter-brained, hare-brained, unreflective, unreflecting, ecervele, offhand, dizzy, muzzy, brainsick, giddy, giddy as a goose, wild, harum-scarum, rantipole, highflying, heedless, careless, inconsiderate, thoughtless, absent, abstracted, distrait, absentminded, lost, lost in thought, wrapped in thought, rapt, in the clouds, bemused, dreaming on other things, musing on other things, preoccupied, engrossed, daydreaming, in a reverie, off one's guard, napping, dreamy, caught napping, disconcerted, distracted, put out, inattentively, inadvertently, absent-mindedly, per incuriam, sub silentio, Int, stand at ease, stand easy!, the attention wanders, one's wits gone a woolgathering, one's wits gone a bird's nesting, it never entered into one's head, the mind running on other things, one's thoughts being elsewhere, had it been a bear it would have bitten you.

Neglect

N neglect, carelessness, trifling, negligence, omission, oversight, laches, default, supineness, inattention, nonchalance, imprudence, recklessness, slovenliness improvidence, noncompletion, inexactness, paralipsis, paralepsis, paraleipsis (in rhetoric), trifler, waiter on Providence, Micawber, neglecting, unmindful, negligent, neglectful, heedless, careless, thoughtless, perfunctory, remiss, feebleness, inconsiderate, uncircumspect, incircumspect, off one's guard, unwary, unwatchful, unguarded, offhand, supine, inattentive, insouciant, imprudent, reckless, slovenly inexact, improvident, neglected, unheeded, uncared-for, unperceived, unseen, unobserved, unnoticed, unnoted, unmarked, unattended to, unthought of, unregarded, unremarked, unmissed, shunted, shelved, unexamined, unstudied, unsearched, unscanned, unweighed, unsifted, unexplored, abandoned, buried in a napkin, hid under a bushel, negligently, hand over head, anyhow, in an unguarded moment, per incuriam, Int, never mind, no matter, let it pass, out of sight, out of mind.


For further exploring for "thoughtless" in Webster Dictionary Online


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