35 entries under unplanned topic. ×

11
inadvertent(adjective, careless, casual, innocent, thoughtless)
10
unpremeditated(adjective, rude, careless, chance, casual)
8
unconscious(adjective, careless, casual, thoughtless, unwise)
7
casual(adjective, chance, unintentional, accidental)
7
fortuitous(adjective, chance, intention, unintentional)
6
undevised(adjective, planned, unintentional, accidental)
5
chance(adjective, unknowing, unaware, unintentional)
5
random(adjective, chance, unintentional, accidental)
4
aimless(adjective, unknowing, unaware, unintentional)
4
spontaneous(adjective, chance, unwilling, obligatory)
4
unexpected(adjective, chance, unintentional, accidental)
4
unforeseen(adjective, chance, intention, unintentional)
3
extemporaneous(adjective, chance, unintentional, accidental)
3
haphazard(adjective, unknowing, unaware, unintentional)
2
adventitious(adjective, chance, unintentional, accidental)
2
erratic(adjective, chance, unintentional, accidental)
2
impulsive(adjective, rude, careless, chance, thoughtless)
2
incidental(adjective, chance, unintentional, unpremeditated)
2
purposeless(adjective, unintentional, accidental, inadvertent)
1
extempore(chance, unpremeditated)
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APASmart Define. (2015). unintended thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unintended/thesaurus/synonyms
ChicagoSmart Define. 2015. "unintended thesaurus" https://smartdefine.org/unintended/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unintended thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unintended/thesaurus/synonyms>.
MLASmart Define. "unintended thesaurus" 13 April 2015. Web. 30 September 2026. <https://smartdefine.org/unintended/thesaurus/synonyms>