1
be caught napping(expression, idiom)
1
be surprised
1
be taken unawares(expression, idiom)
1
be unprepared
1
casual(adjective, free, informal, spontaneous, unprepared)
1
caught napping
1
caught off balance(expression, idiom)
1
caught short
1
cobble up(verb, expression, concentrate, fabricate, speculate)
1
cook up
1
cooked-up(mock, affected, impromptu)
1
devise(verb, make, create, arrange, prepare)
1
disqualification
1
do offhand
1
expedient(adjective, free, informal, casual, snap)
1
extemporaneousness
1
extemporarily
1
extemporariness
1
fabricate(verb, make, create, prepare, discover)
1
fake it(noun, verb, expression, arrange, concentrate)
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APASmart Define. (2015). ad lib thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/ad_lib/thesaurus/synonyms
ChicagoSmart Define. 2015. "ad lib thesaurus" https://smartdefine.org/ad_lib/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, ad lib thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/ad_lib/thesaurus/synonyms>.
MLASmart Define. "ad lib thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/ad_lib/thesaurus/synonyms>