- Definitions|2
- Thesaurus|435
- Abbreviations|0
64 entries under adjective topic. ×
| cruel(rude, inconsiderate, unappreciative, unthankful) | |
| futile | |
| miserable | |
| profitless | |
| rude(inconsiderate, unappreciative, unthankful) | |
| ungratifying | |
| wretched | |
| unmindful(inconsiderate, unappreciative, ingratitude) | |
| unprofitable | |
| unsung | |
| barren | |
| bootless | |
| inappreciative(rude, inconsiderate, unappreciative, unthankful) | |
| sour(unsatisfactory, fruitless, unfulfilling) | |
| unacknowledged | |
| undesired(pain, disagreeable, lousy, unwelcome) | |
| difficult(unsatisfactory, trying, fruitless, unfulfilling) | |
| dreary | |
| offensive | |
| tedious |
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| APA | Smart Define. (2015). thankless thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/thankless/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "thankless thesaurus" https://smartdefine.org/thankless/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, thankless thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/thankless/thesaurus/synonyms>. |
| MLA | Smart Define. "thankless thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/thankless/thesaurus/synonyms> |