| be caught napping(expression, idiom) | |
| be surprised | |
| be taken unawares(expression, idiom) | |
| be unprepared | |
| casual(adjective, free, informal, spontaneous, unprepared) | |
| caught napping | |
| caught off balance(expression, idiom) | |
| caught short | |
| cobble up(verb, expression, concentrate, fabricate, speculate) | |
| cook up | |
| cooked-up(mock, affected, impromptu) | |
| devise(verb, make, create, arrange, prepare) | |
| disqualification | |
| do offhand | |
| expedient(adjective, free, informal, casual, snap) | |
| extemporaneousness | |
| extemporarily | |
| extemporariness | |
| fabricate(verb, make, create, prepare, discover) | |
| fake it(noun, verb, expression, arrange, concentrate) |
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| APA | Smart Define. (2015). ad lib thesaurus. Retrieved September 21, 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 21, 2026). |
| Harvard | Smart Define 2015, ad lib thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/ad_lib/thesaurus/synonyms>. |
| MLA | Smart Define. "ad lib thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/ad_lib/thesaurus/synonyms> |