Definitions

thoughtless

[thawt-lis] / ˈθɔt lɪs /

ADJECTIVE

inconsiderate

Synonyms

STRONGEST

antisocial boorish impolite indiscreet insensitive reckless rude

WEAK

apathetic asocial blind brash deaf discourteous egocentric hasty heedless hot-headed inattentive incautious indelicate indifferent listless madcap neglectful negligent primitive rash self-centered selfish sharp short tactless uncaring unceremonious unconcerned undiplomatic ungracious unheeding unkind unmindful unrefined

Antonyms

STRONGEST

mannerly polite refined sophisticated

WEAK

attentive considerate heeding kind mindful observant thinking thoughtful unselfish

ADJECTIVE

absent-minded, unobservant

Synonyms

STRONGEST

careless foolish ill-advised ill-considered irrational mindless reckless senseless stupid

WEAK

bovine confused doltish dull empty-headed flighty heedless imprudent inadvertent inane inattentive incomprehensible inept injudicious irreflective lamebrained loony neglectful negligent obtuse puerile rash regardless remiss silly undiscerning unheeding unmindful unreasonable unreasoning unreflective unthinking vacuous witless

Antonyms

STRONGEST

careful cautious intelligent mindful prudent rational reasonable responsible sensible thoughtful wise

WEAK

attentive considerate heeding kind observant thinking unselfish

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Godzilla is a creature of thoughtless collateral damage.

From Salon • Mar. 20, 2026

Not with an impossible grading policy or a thoughtless change to my course, but by letting students use artificial intelligence on team assignments.

From The Wall Street Journal • Feb. 25, 2026

Back home in Finland, the prime minister said on Monday making such gestures was "thoughtless and stupid" and that the controversy that ensued was "damaging" to the country.

From BBC • Dec. 16, 2025

Am I wrong to think they are thoughtless?

From MarketWatch • Nov. 3, 2025

“You’re clever. We both know that. But you can be thoughtless. A clever, thoughtless person is one of the most terrifying things there is. Worse, I’ve been teaching you some dangerous things.”

From "The Name of the Wind" by Patrick Rothfuss

Vocabulary lists containing thoughtless

Wolfie & Fly

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thoughtless

Example Sentences

Related Words

Vocabulary lists containing thoughtless

Wolfie & Fly