Improper
Improper adjective - Not appropriate for a particular occasion or situation.
Thoughtless and improper are semantically related. In some cases you can use "Thoughtless" instead an adjective "Improper".
Nearby Word: improperly
Thoughtless
Thoughtless adjective - Showing a lack of manners or consideration for others.
Usage example: always making thoughtless comments that hurt other people's feelings
Improper and thoughtless are semantically related. Sometimes you can use "Improper" instead an adjective "Thoughtless".
Mutual synonyms
Cite this Source
Thoughtless and Improper. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/improper/thoughtless
Improper & Thoughtless. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/improper/thoughtless>.
Thoughtless or Improper. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/improper/thoughtless.
Google Ngram Viewer shows how "improper" and "thoughtless" have occurred on timeline