32 entries under accidental topic. ×

34
unexpected(adjective, great, excellent, shock, violent)
15
fortuitous(adjective, chance, shocking, astonishing, intention)
11
chance(adjective, shocking, astonishing, astounding, unintentional)
11
unplanned(adjective, chance, lucky, unintentional)
10
casual(adjective, chance, random, liable, unintentional)
9
adventitious(adjective, chance, unplanned, unintentional)
7
unintentional(adjective, chance, planned, intention, unplanned)
6
contingent(adjective, chance, possible, liable, dependent)
5
incidental(adjective, chance, lucky, liable, unplanned)
5
spontaneous(chance, unplanned, unintended, unpremeditated)
5
unpremeditated(adjective, chance, intention, unplanned)
4
random(adjective, chance, liable, unintentional, dependent)
3
aleatory(adjective, unintended)
3
inadvertent(adjective, unplanned, unintentional, unintended)
3
serendipitous(adjective, chance, lucky, unplanned)
3
undesigned(adjective, intention, unplanned, unintentional)
3
unintended(adjective, chance, intention, unplanned, unintentional)
2
fluky(adjective, chance, lucky, liable, unplanned)
2
undevised(adjective, unplanned, unintentional, inadvertent)
2
unwitting(adjective, unplanned, inadvertent)
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APASmart Define. (2015). unforeseen thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unforeseen/thesaurus/synonyms
ChicagoSmart Define. 2015. "unforeseen thesaurus" https://smartdefine.org/unforeseen/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, unforeseen thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unforeseen/thesaurus/synonyms>.
MLASmart Define. "unforeseen thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/unforeseen/thesaurus/synonyms>