25 entries under adjective topic. ×

5
unplanned
3
spontaneous
2
impulsive
2
infrequent
1
casual
1
impromptu
1
instinctive
1
irregular
1
occasional
0
accidental
0
adventitious
0
automatic
0
capricious
0
careless
0
conditional
0
extemporaneous
0
improvised
0
incidental
0
makeshift
0
natural
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APASmart Define. (2015). unscheduled thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unscheduled/thesaurus/synonyms
ChicagoSmart Define. 2015. "unscheduled thesaurus" https://smartdefine.org/unscheduled/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, unscheduled thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unscheduled/thesaurus/synonyms>.
MLASmart Define. "unscheduled thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/unscheduled/thesaurus/synonyms>