16 entries under idiom topic. ×

7
ad lib(expression, adjective, adverb, free)
7
off the cuff(expression, adjective, adverb, free)
2
ad hoc(expression, adjective, free, casual)
2
ad libitum(expression, adjective, adverb, informal)
1
at first glance(expression, free, informal, snap)
1
from the hip(expression, adjective, impulsive, spontaneous)
1
off the hip(expression, offhand, impromptu, extemporaneous)
1
off the top of head(expression, free, informal, impromptu)
1
played by ear(expression, adjective, unqualified, unprepared)
1
shot from the hip(expression, adjective, unprepared, unplanned)
1
taking for ride(expression, free, informal, snap)
1
thought out loud(expression, free, informal, snap)
0
ad libitem(expression, nonpreparation)
0
caught off guard(expression, unqualified, unsuspecting, unready)
0
off top of head(expression, informal, impulsive, snap)
0
taken off guard(expression, unqualified, unsuspecting, unready)
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APASmart Define. (2015). unrehearsed thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/unrehearsed/thesaurus/synonyms
ChicagoSmart Define. 2015. "unrehearsed thesaurus" https://smartdefine.org/unrehearsed/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, unrehearsed thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/unrehearsed/thesaurus/synonyms>.
MLASmart Define. "unrehearsed thesaurus" 14 April 2015. Web. 1 October 2026. <https://smartdefine.org/unrehearsed/thesaurus/synonyms>