Thoughtless
Thoughtless adjective - Showing a lack of manners or consideration for others.
Unthankful and thoughtless are semantically related In some cases you can use "Unthankful" instead an adjective "Thoughtless".
Unthankful
Unthankful adjective - Not feeling or showing gratitude.
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Synonyms for Unthankful
Thoughtless and unthankful are semantically related in thankless topic. You can use "Thoughtless" instead an adjective "Unthankful".
Cite this Source
Unthankful and Thoughtless. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/thoughtless/unthankful
Thoughtless & Unthankful. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/thoughtless/unthankful>.
Unthankful or Thoughtless. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/thoughtless/unthankful.
Google Ngram Viewer shows how "thoughtless" and "unthankful" have occurred on timeline