- Definitions|0
- Thesaurus|95
- Abbreviations|0
18 entries under impromptu topic. ×
| extemporary(adjective, free, casual, spontaneous) | |
| extempore(adjective, adverb, free, unrehearsed) | |
| improvised(adjective, adverb, free, offhand) | |
| informal(adjective, free, casual, snap) | |
| off the hip(expression, adjective, idiom, adverb) | |
| spontaneous(adjective, free, informal, snap) | |
| spur-of-the-moment(adjective, free, informal, casual) | |
| unpremeditated(adjective, free, informal, casual) | |
| unprepared(adjective, free, informal, snap) | |
| unrehearsed(adjective, adverb, free, informal, snap) | |
| unstudied(adjective, free, informal, casual) | |
| without preparation(expression, adjective, adverb, extemporaneous) | |
| ad-lib(adjective, adverb, offhand, extemporaneous) | |
| extemporaneous | |
| extemporaneously(adverb, spontaneously, improv) | |
| spontaneously(adverb, improv, extemporaneously) | |
| throwaway(adjective, extemporaneous) | |
| without rehearsal(expression, adverb, spontaneously, improv) |
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| APA | Smart Define. (2011). off the top of head thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/off_the_top_of_head/thesaurus/synonyms |
| Chicago | Smart Define. 2011. "off the top of head thesaurus" https://smartdefine.org/off_the_top_of_head/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2011, off the top of head thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/off_the_top_of_head/thesaurus/synonyms>. |
| MLA | Smart Define. "off the top of head thesaurus" 23 May 2011. Web. 26 September 2026. <https://smartdefine.org/off_the_top_of_head/thesaurus/synonyms> |