thoughtless

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thought·less

(thôt′lĭs)

adj.

1. Marked by or showing lack of due forethought or care; careless: a thoughtless mistake; a thoughtless bumbler. See Synonyms at careless.

2. Inconsiderate of the feelings of others: a thoughtless remark.

3. Lacking thought: staring blankly in a thoughtless daze.

thought′less·ly adv.

thought′less·ness n.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

thoughtless

(ˈθɔːtlɪs)

adj

1. inconsiderate: a thoughtless remark.

2. having or showing lack of thought: a thoughtless essay.

3. unable to think; not having the power of thought

ˈthoughtlessly adv

ˈthoughtlessness n

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

thought•less

(ˈθɔt lɪs)

adj.

1. lacking in consideration for others; inconsiderate; tactless: a thoughtless remark.

2. not thinking enough; careless or heedless: thoughtless of his health.

3. devoid of or lacking capacity for thought.

4. characterized by or showing lack of thought.

[1585–95]

thought′less•ly, adv.

thought′less•ness, n.

ThesaurusAntonymsRelated WordsSynonymsLegend:

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Adj.	1.	thoughtless - showing lack of careful thought; "the debate turned into thoughtless bickering" inconsiderate - lacking regard for the rights or feelings of others; "shockingly inconsiderate behavior" thoughtful - exhibiting or characterized by careful thought; "a thoughtful paper"
	2.	thoughtless - without care or thought for others; "the thoughtless saying of a great princess on being informed that the people had no bread; `Let them eat cake'" uncaring, unthinking inconsiderate - lacking regard for the rights or feelings of others; "shockingly inconsiderate behavior"

thoughtless

adjective

1. inconsiderate, rude, selfish, insensitive, unkind, uncaring, indiscreet, tactless, impolite, undiplomatic a minority of thoughtless and inconsiderate people
inconsiderate thoughtful, considerate, tactful, unselfish, diplomatic, attentive

2. unthinking, stupid, silly, careless, regardless, foolish, rash, reckless, mindless, negligent, inadvertent, ill-considered, tactless, absent-minded, imprudent, slapdash, neglectful, heedless, slipshod, inattentive, injudicious, remiss, unmindful, unobservant, ditsy or ditzy (slang) It was thoughtless of her to mention it.
unthinking wise, intelligent, prudent, considered, smart, well-advised, tactful, well-thought-out

Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002

thoughtless

adjective

1. Lacking or marked by a lack of care:

careless, feckless, heedless, inattentive, irresponsible, reckless, unconcerned, unmindful, unthinking.

2. Devoid of consideration for others' feelings:

disregardful, inconsiderate, unthinking, unthoughtful.

Translations

طَائِش

bezmyšlenkovitýbezohlednýlehkomyslnýnemyslícíneohleduplný

tankeløs

gedankenlos rücksichtslos

απερίσκεπτος

irreflexivo

ajattelematon

irréfléchi négligent

lakomislen

tillitslaus

sconsiderato avventato

思慮を欠く

경솔한

neuvážený

tanklös

อย่างไม่มีความคิด

düşüncesiz

vô tâm

欠考虑的粗心的自私的轻率的

thoughtless

[ˈθɔːtlɪs] ADJ

1. (= inconsiderate) [person] → poco considerado, desconsiderado; [remark] → desconsiderado
how thoughtless of you! → ¡qué desconsiderado or poco considerado por tu parte!, ¡qué falta de consideración por tu parte!
it was thoughtless of him to say that → fue una falta de consideración por su parte decir eso

2. (= unthinking) → irreflexivo, inconsciente

Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

thoughtless

[ˈθɔːtləs] adj (= inconsiderate) [person] → irréfléchi(e); [remark] → indélicat(e); [behaviour] → inconsidéré(e)
He's completely thoughtless → Il est complètement irréfléchi.
to be thoughtless of sb
It was thoughtless of her to mention it → C'était inconsidéré de sa part d'en parler.

Collins English/French Electronic Resource. © HarperCollins Publishers 2005

thoughtless

adj

(= inconsiderate) person → gedankenlos, rücksichtslos; (= inattentive, unhelpful) → gedankenlos, unachtsam; he’s very thoughtless of or about/to(wards) other people → er ist sehr gedankenlos/rücksichtslos anderen gegenüber; how thoughtless of you! → wie rücksichtslos von dir!; it was thoughtless of her (to tell him) → es war gedankenlos von ihr(, es ihm zu erzählen)

(= without reflection) → gedankenlos, unüberlegt, unbesonnen; thoughtless of the danger, he leapt → ungeachtet der Gefahr sprang er

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

thoughtless

[ˈθɔːtlɪs] adj (person, remark, words) → sconsiderato/a; (behaviour) → scortese
thoughtless of the consequences → senza pensare alle conseguenze

Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

thought

(ˈθoːt) verb

see think.

noun

1. something that one thinks; an idea. I had a sudden thought.

2. the act of thinking; consideration. After a great deal of thought we decided to emigrate to America.

3. general opinion. scientific thought.

ˈthoughtful adjective

1. (appearing to be) thinking deeply. You look thoughtful; a thoughtful mood.

2. thinking of other people; consideration. It was very thoughtful of you to do that.

ˈthoughtfully adverb

ˈthoughtfulness noun

ˈthoughtless adjective

not thinking about other people; showing no thought, care or consideration; inconsiderate. thoughtless words.

ˈthoughtlessly adverb

ˈthoughtlessness noun

thoughtless

→ طَائِش bezohledný tankeløs rücksichtslos απερίσκεπτος irreflexivo ajattelematon irréfléchi lakomislen avventato 思慮を欠く 경솔한 gedachteloos tankeløs bezmyślny desatento безрассудный tanklös อย่างไม่มีความคิด düşüncesiz vô tâm 欠考虑的

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References in classic literature ?

Is it better to reveal the snares and pitfalls of life to the young and thoughtless traveller, or to cover them with branches and flowers?

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That thoughtless deity immediately plunged into the pool, which became so salivated that the trees about its margin all came loose and dropped out.

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Though often thoughtless in my speech, I never should have imagined that you would take my words as a jest at your expense.

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There is no steady unretracing progress in this life; we do not advance through fixed gradations, and at the last one pause: --through infancy's unconscious spell, boyhood's thoughtless faith, adolescence' doubt (the common doom), then scepticism, then disbelief, resting at last in manhood's pondering repose of If.

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And he shut up any of his thoughtless comrades who attempted to allude to his connection.

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To say the truth, Sophia, when very young, discerned that Tom, though an idle, thoughtless, rattling rascal, was nobody's enemy but his own; and that Master Blifil, though a prudent, discreet, sober young gentleman, was at the same time strongly attached to the interest only of one single person; and who that single person was the reader will be able to divine without any assistance of ours.

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"These Men are like thoughtless young ones--stupid and easily amused.

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There was some booing from those more thoughtless and excitable souls to whom a crowd is always an occasion for noise and horse-play.

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There's some turrible thoughtless people in the world, Mistress Blythe.

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She ceased to be a woman, complex, kind and petulant, considerate and thoughtless; she was a Maenad.

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Here was a wonderful instance of consideration from the thoughtless Miss Murray.

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That young man (speaking lower) is very thoughtless. Do not tell his father, but that young man is not quite the thing.