77 entries under adjective topic. ×

8
extempore(adverb, free, casual, spontaneous)
7
impromptu(noun, adverb, free, affected)
7
off the cuff(expression, idiom, adverb, free)
7
offhand(adverb, free, informal, casual)
7
extemporaneous(adverb, impulsive, spontaneous, unprepared)
7
unprepared(free, informal, casual, snap)
6
unpremeditated(free, informal, casual, snap)
5
ad libitum(expression, adverb, impulsive, unprepared)
5
spontaneous(free, informal, snap, unprepared)
5
unplanned(free, informal, casual, unprepared)
4
unstudied(free, informal, casual, unprepared)
4
extemporary(free, casual, spontaneous, unprepared)
4
unrehearsed(adverb, free, informal, impulsive)
3
by ear(expression, free, informal, casual)
3
extemporized(spontaneous, unprepared, unplanned, unrehearsed)
3
improvised(adverb, free, impulsive, spontaneous)
3
improviso(free, informal, mock, casual)
3
snap(free, informal, casual, unprepared)
3
spur-of-the-moment(free, informal, casual, snap)
3
unarranged(spontaneous, unprepared, unplanned, unrehearsed)
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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>