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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.

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

"Food is and will remain valuable, even if thoughtless do-gooders throw around free potatoes at schools and churches," said Timo Scheib from the Brandenburg Farmers' Association.

From BBC • Jan. 29, 2026

Her volition and intention don’t matter because an artist who is in on the joke makes hating less fun for the thoughtless critic.

From Salon • Jan. 10, 2026

Am I wrong to think they are thoughtless?

From MarketWatch • Nov. 3, 2025

I liked the idea that a part of one's body might be thought of as lazy—not thoughtless or hostile, just unwilling to extend itself for the betterment of the team.

From "Me Talk Pretty One Day" by David Sedaris

Vocabulary lists containing thoughtless

Wolfie & Fly

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