38 entries under free topic. ×
| extempore(adjective, adverb, casual, spontaneous) | |
| impromptu(noun, adjective, adverb, affected) | |
| off the cuff(expression, adjective, idiom, adverb) | |
| offhand(adjective, adverb, informal, casual) | |
| unprepared(adjective, informal, casual, snap) | |
| unpremeditated(adjective, informal, casual, snap) | |
| spontaneous(adjective, informal, snap, unprepared) | |
| unplanned(adjective, informal, casual, unprepared) | |
| unstudied(adjective, informal, casual, unprepared) | |
| extemporary(adjective, casual, spontaneous, unprepared) | |
| unrehearsed(adjective, adverb, informal, impulsive) | |
| by ear(expression, adjective, informal, casual) | |
| improvised(adjective, adverb, impulsive, spontaneous) | |
| improviso(adjective, informal, mock, casual) | |
| snap(adjective, informal, casual, unprepared) | |
| spur-of-the-moment(adjective, informal, casual, snap) | |
| ad hoc(expression, adjective, informal, casual) | |
| improv(verb, adjective, adverb, informal) | |
| makeshift(adjective, adverb, informal, casual) | |
| off the top of head(expression, idiom, informal, casual) |
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| APA | Smart Define. (2015). ad lib thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/ad_lib/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "ad lib thesaurus" https://smartdefine.org/ad_lib/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, ad lib thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/ad_lib/thesaurus/synonyms>. |
| MLA | Smart Define. "ad lib thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/ad_lib/thesaurus/synonyms> |