- Definitions|2
- Thesaurus|435
- Abbreviations|0
64 entries under adjective topic. ×
| ungrateful(difficult, rude, inconsiderate, grateful) | |
| unthankful(rude, inconsiderate, grateful, churlish) | |
| thoughtless(rude, inconsiderate, unappreciative, ungrateful) | |
| unappreciative(rude, grateful, churlish, ungrateful) | |
| unrequited | |
| unappreciated | |
| unpleasant(pain, rude, disagreeable, lousy) | |
| disagreeable(pain, unpleasant, lousy, unsatisfactory) | |
| heedless(rude, inconsiderate, churlish, unappreciative) | |
| unrewarding(difficult, unsatisfactory, trying, fruitless) | |
| distasteful(pain, disagreeable, lousy, unsatisfactory) | |
| fruitless(difficult, unsatisfactory, trying, unappreciated) | |
| unwelcome(pain, disagreeable, lousy, annoying) | |
| useless | |
| vain | |
| careless(rude, inconsiderate, churlish, unappreciative) | |
| displeasing(noun, pain, unpleasant, disagreeable) | |
| self-centered(rude, inconsiderate, churlish, unappreciative) | |
| ungracious(rude, inconsiderate, churlish, unappreciative) | |
| bad(pain, unsatisfactory, fruitless, unfulfilling) |
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| APA | Smart Define. (2015). thankless thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/thankless/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "thankless thesaurus" https://smartdefine.org/thankless/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, thankless thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/thankless/thesaurus/synonyms>. |
| MLA | Smart Define. "thankless thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/thankless/thesaurus/synonyms> |