Synonyms|87Antonyms|3|Broader|0Narrower|0Related|5

35 entries under free topic. ×

1
on impulse(expression, adjective, informal, casual)
1
snap(adjective, informal, casual, unrehearsed)
1
spontaneous(adjective, informal, snap, impromptu)
1
spur-of-the-moment(adjective, informal, casual, impromptu)
1
taking for ride(expression, idiom, informal, casual)
1
thought out loud(expression, idiom, informal, casual)
1
tossed off(expression, adjective, informal, casual)
1
tossed out(expression, adjective, informal, casual)
1
unpremeditated(adjective, informal, casual, impromptu)
1
unprepared(adjective, informal, snap, impromptu)
1
unrehearsed(adjective, adverb, informal, snap)
1
unstudied(adjective, informal, casual, impromptu)
1
winging it(adjective, informal, casual, snap)
0
on the spot(expression, adjective, idiom, casual)
0
snapper(adjective, casual, unrehearsed, improvised)
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ChicagoSmart Define. 2011. "off the top of head thesaurus" https://smartdefine.org/off_the_top_of_head/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2011, off the top of head thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/off_the_top_of_head/thesaurus/synonyms>.
MLASmart Define. "off the top of head thesaurus" 23 May 2011. Web. 29 September 2026. <https://smartdefine.org/off_the_top_of_head/thesaurus/synonyms>