- Definitions|2
- Thesaurus|339
- Abbreviations|0
| tenuous(adjective, unsubstantial) | |
| tenuousness(noun, unsubstantiality) | |
| trifle | |
| truancy(noun, absence) | |
| unconcrete(adjective, unsubstantial) | |
| unreal(adjective, unsubstantial) | |
| unsubstantial(adjective, unsubstantial) | |
| vacuous(adjective, unsubstantial) | |
| vacuousness | |
| weightless(adjective, unsubstantial) | |
| wind | |
| zilch | |
| zip | |
| abridgement(noun, want, deficiency, absence, dearth) | |
| annals of history(expression, idiom, extinction, obscurity) | |
| blackness(noun, extinction, obscurity, darkness) | |
| breath | |
| curtailment(noun, want, deficiency, absence, dearth) | |
| darkness(noun, extinction, obscurity) | |
| decrease(noun, want, deficiency, absence, dearth) |
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| APA | Smart Define. (2015). nonexistence thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/nonexistence/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "nonexistence thesaurus" https://smartdefine.org/nonexistence/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, nonexistence thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/nonexistence/thesaurus/synonyms>. |
| MLA | Smart Define. "nonexistence thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/nonexistence/thesaurus/synonyms> |