153 entries under adjective topic. ×
| flashing | |
| flickering | |
| flitting | |
| fugacious | |
| fugitive | |
| impermanent | |
| insistent(prompt, fast, quick, immediate) | |
| little | |
| meteoric | |
| mortal | |
| mutable | |
| out of the blue | |
| precipitous(sudden, instantaneity) | |
| presto | |
| rootless | |
| short-term | |
| snap | |
| temporal | |
| temporary | |
| unexpected(sudden, surprising) |
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| APA | Smart Define. (2016). instantaneous thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/instantaneous/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "instantaneous thesaurus" https://smartdefine.org/instantaneous/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, instantaneous thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/instantaneous/thesaurus/synonyms>. |
| MLA | Smart Define. "instantaneous thesaurus" 26 February 2016. Web. 25 September 2026. <https://smartdefine.org/instantaneous/thesaurus/synonyms> |