25 entries under informal topic. ×

8
unpremeditated(adjective, free, casual, impromptu)
8
unrehearsed(adjective, adverb, free, preparation)
6
makeshift(adjective, adverb, free, casual)
4
unplanned(adjective, free, casual, unqualified)
3
spur-of-the-moment(adjective, free, casual, impromptu)
3
unstudied(adjective, free, casual, impromptu)
2
improv(adjective, adverb, free, casual)
2
winged(adjective, unqualified, unprepared, impromptu)
1
ad hoc(expression, free, casual, unrehearsed)
1
at first glance(expression, free, casual, snap)
1
expedient(free, casual, snap, unrehearsed)
1
immediate(free, casual, snap, unrehearsed)
1
improvisatory(free, casual, snap, unrehearsed)
1
improviso(adjective, free, casual, snap)
1
jamming(free, casual, snap, unrehearsed)
1
made-up(free, snap, unrehearsed, improvised)
1
on-the-spot(free, casual, snap, unrehearsed)
1
on impulse(expression, free, casual, snap)
1
snap(free, casual, unrehearsed, improvised)
1
taking for ride(expression, free, casual, snap)
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APASmart Define. (2015). off the cuff thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/off_the_cuff/thesaurus/synonyms
ChicagoSmart Define. 2015. "off the cuff thesaurus" https://smartdefine.org/off_the_cuff/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, off the cuff thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/off_the_cuff/thesaurus/synonyms>.
MLASmart Define. "off the cuff thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/off_the_cuff/thesaurus/synonyms>