Definition of thoughtless
- rude and thoughtless behavior
- a thoughtless remark
a selfish and thoughtless person
always making thoughtless comments that hurt other people's feelings
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'thoughtless.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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a blind with adjustable horizontal slats
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