Synonyms|159Antonyms|22|Broader|0Narrower|0Related|5

27 entries under informal topic. ×

1
ad lib(expression, adjective, adverb, simple)
1
by ear(expression, adjective, adverb, snap)
1
improv(adjective, adverb, snap, offhand)
1
off the cuff(expression, adjective, idiom, adverb)
1
off the top of head(expression, adjective, idiom, adverb)
1
spontaneous(adjective, impulsive, willing, snap)
0
ad hoc(expression, adjective, snap, unrehearsed)
0
at first glance(expression, adjective, idiom, snap)
0
expedient(adjective, snap, unrehearsed)
0
immediate(adjective, snap, unrehearsed)
0
improvisatory(adjective, snap, unrehearsed, snapper)
0
improviso(adjective, snap, impromptu, unrehearsed)
0
jamming(adjective, snap, unrehearsed)
0
made-up(adjective, snap, unrehearsed)
0
makeshift(adjective, adverb, snap, offhand)
0
on-the-spot(adjective, snap, unrehearsed, snapper)
0
on impulse(expression, adjective, snap, unrehearsed)
0
snap(adjective, unrehearsed)
0
spur-of-the-moment(adjective, impulsive, snap, unrehearsed)
0
taking for ride(expression, adjective, idiom, snap)
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APASmart Define. (2011). off top of head thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/off_top_of_head/thesaurus/synonyms
ChicagoSmart Define. 2011. "off top of head thesaurus" https://smartdefine.org/off_top_of_head/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2011, off top of head thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/off_top_of_head/thesaurus/synonyms>.
MLASmart Define. "off top of head thesaurus" 24 May 2011. Web. 27 September 2026. <https://smartdefine.org/off_top_of_head/thesaurus/synonyms>