Synonyms|1.1kAntonyms|112|Broader|10Narrower|9Related|579
12
unprepared(adjective, unable)
5
ad-lib(adjective, adverb, manner, rehearsed)
4
unwilling(adjective, mood, willing, unable)
4
extemporaneous(adjective, improvised, rehearsed)
4
offhand
3
impromptu
2
unstudied(adjective, impromptu)
2
unready(adjective, unable)
1
extempore
1
disinclined(adjective, unable)
1
not taught
1
unable
1
unpremeditated
1
unskilled
1
untrained
0
unqualified(adjective, suitable, incompetent, prepared)
0
off-the-cuff
0
offhanded
0
spontaneous
0
spur-of-the-moment
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APASmart Define. (2015). prepared thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/prepared/thesaurus/antonyms
ChicagoSmart Define. 2015. "prepared thesaurus" https://smartdefine.org/prepared/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2015, prepared thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/prepared/thesaurus/antonyms>.
MLASmart Define. "prepared thesaurus" 6 October 2015. Web. 23 September 2026. <https://smartdefine.org/prepared/thesaurus/antonyms>