- Definitions|2
- Thesaurus|1.1k
- Abbreviations|0
27 entries under brief topic. ×
| insubstantial(adjective, light, weak, slight, short) | |
| unstable(adjective, short, limited, impulsive, unpredictable) | |
| flying(short, temporary, transitory, short-lived) | |
| vanishing(adjective, transient, transitory, short-lived) | |
| flash in the pan(expression, idiom, transitory, short-lived) | |
| sudden(immediate, instant, transitory, short-lived) | |
| untrustworthy(adjective, dubious, unreliable, passing) |
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| APA | Smart Define. (2016). ephemeral thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/ephemeral/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "ephemeral thesaurus" https://smartdefine.org/ephemeral/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, ephemeral thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/ephemeral/thesaurus/synonyms>. |
| MLA | Smart Define. "ephemeral thesaurus" 26 February 2016. Web. 26 September 2026. <https://smartdefine.org/ephemeral/thesaurus/synonyms> |