Synonyms|48Antonyms|8|Broader|1Narrower|0Related|146
5
unplanned(adjective, unprepared)
3
open
3
spontaneous
2
ad hoc(expression, idiom, unprepared)
2
impulsive(adjective, unprepared)
2
infrequent
2
unbooked
1
unanticipated
1
casual
1
extra
1
extraordinary
1
forced
1
impromptu
1
instinctive
1
irregular
1
nonscheduled
1
occasional
1
special
0
accidental
0
unexpected
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APASmart Define. (2015). unscheduled thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/unscheduled/thesaurus/synonyms
ChicagoSmart Define. 2015. "unscheduled thesaurus" https://smartdefine.org/unscheduled/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, unscheduled thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/unscheduled/thesaurus/synonyms>.
MLASmart Define. "unscheduled thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/unscheduled/thesaurus/synonyms>