Synonyms|241Antonyms|112|Broader|3Narrower|0Related|712
1
thrown off(expression, fake, unprepared, unplanned, unrehearsed)
1
toss off(expression, adjective, free, casual, impulsive)
1
toss out(expression, adjective, free, casual, impulsive)
1
tossed off(expression, fake, unprepared, unplanned, unrehearsed)
1
tripped up
1
unartful(adjective, simple, natural, casual, impulsive)
1
unavoidable(adjective, simple, natural, casual, impulsive)
1
unbegun
1
unbidden(adjective, simple, natural, casual, impulsive)
1
uncompelled(adjective, simple, natural, casual, impulsive)
1
unconcocted
1
unconstrained(adjective, simple, natural, casual, impulsive)
1
uncontrolled(adjective, simple, natural, casual, impulsive)
1
undeliberated
1
unexpected(chance, thoughtless, impetuous, unplanned, unwary)
1
unforced(adjective, simple, natural, casual, impulsive)
1
unforeseen(chance, unplanned, accidental, unpremeditated, inadvertent)
1
unguarded
1
unhatched
1
unmade
For more, visit Extemporaneous on Power Thesaurus
11 years ago|9.3k views|share |citing 
APASmart Define. (2015). extemporaneous thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/extemporaneous/thesaurus/synonyms
ChicagoSmart Define. 2015. "extemporaneous thesaurus" https://smartdefine.org/extemporaneous/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, extemporaneous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/extemporaneous/thesaurus/synonyms>.
MLASmart Define. "extemporaneous thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/extemporaneous/thesaurus/synonyms>