- Definitions|2
- Thesaurus|1.2k
- Abbreviations|0
146 entries under adjective topic. ×
| lacking | |
| literary sleeveless | |
| meaningless(invalid, unsubstantiated, unsupported, annulled) | |
| not serious(expression, empty, worthless, frivolous) | |
| not well(expression, weak, short, weakening) | |
| nullified(meaningless, invalid, unsubstantiated, unsupported) | |
| of no avail(expression, idiom, empty, worthless) | |
| purposeless | |
| rambling(empty, worthless, frivolous, ineffective) | |
| scant(weak, short, inadequate, useless) | |
| scanty(weak, short, weakening, worsening) | |
| scarce(weak, short, weakening, worsening) | |
| short(weak, weakening, worsening, deteriorating) | |
| superficial(empty, worthless, frivolous, ineffective) | |
| terrible(unfortunate, grievous) | |
| to no avail | |
| unhelpful(empty, worthless, frivolous, ineffective) | |
| unnecessary(empty, worthless, frivolous, ineffective) | |
| unpractical | |
| unserviceable |
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| APA | Smart Define. (2016). unsuccessful thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unsuccessful/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "unsuccessful thesaurus" https://smartdefine.org/unsuccessful/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, unsuccessful thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unsuccessful/thesaurus/synonyms>. |
| MLA | Smart Define. "unsuccessful thesaurus" 24 March 2016. Web. 29 September 2026. <https://smartdefine.org/unsuccessful/thesaurus/synonyms> |