thoughtless

adjective

thought·​less ˈthȯt-ləs How to pronounce thoughtless (audio)
1
: lacking concern for others : inconsiderate
rude and thoughtless behavior
a thoughtless remark
2
a
: insufficiently alert : careless
b
: reckless, rash
thoughtless actions
3
: devoid of thought : insensate
thoughtlessly adverb
thoughtlessness noun

Examples of thoughtless in a Sentence

a selfish and thoughtless person always making thoughtless comments that hurt other people's feelings
Recent Examples on the Web Their objectives are routinely thwarted by the democratic process and the thoughtless voters who participate in it. Noah Rothman, National Review, 18 Jan. 2024 In response to the Jets star’s thoughtless comments, Kimmel threatened to take Rodgers to court. Charisma Madarang, Rolling Stone, 9 Jan. 2024 See all Example Sentences for thoughtless 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'thoughtless.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1544, in the meaning defined at sense 2a

Time Traveler
The first known use of thoughtless was in 1544

Dictionary Entries Near thoughtless

Cite this Entry

“Thoughtless.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thoughtless. Accessed 31 May. 2024.

Kids Definition

thoughtless

adjective
thought·​less ˈthȯt-ləs How to pronounce thoughtless (audio)
1
a
: not careful and alert
b
: done without thinking beforehand
thoughtless actions
2
: lacking concern for others : inconsiderate
a thoughtless remark
thoughtlessly adverb
thoughtlessness noun

More from Merriam-Webster on thoughtless

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!