7
peculiar(adjective, unusual, strange, new, exceptional)
7
precipitate(adjective, passionate, violent, thoughtless, impulsive)
6
appealing(great, excellent, superb, super, groovy)
6
astounding(adjective, great, excellent, superb, super)
6
atypical(adjective, extraordinary, unusual, strange, exceptional)
6
exceptional(adjective, extraordinary, unusual, strange, new)
6
offbeat(adjective, odd, bizarre, outlandish)
6
phenomenal(adjective, great, excellent, unusual, strange)
6
queer(adjective, extraordinary, unusual, strange, exceptional)
6
staggering(adjective, great, excellent, superb, super)
6
stunning(adjective, great, excellent, superb, super)
6
surprise(noun, adjective, state, shock, amazing)
6
unimaginable(adjective, great, excellent, superb, super)
6
unintentional(adjective, chance, planned, unplanned, accidental)
6
unwonted(adjective, extraordinary, unusual, strange, new)
5
contingent(adjective, chance, possible, liable, unplanned)
5
fanciful(great, excellent, superb, super, groovy)
5
freak
5
happy
5
impetuous(adjective, passionate, violent, fast, quick)
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APASmart Define. (2015). unexpected thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/unexpected/thesaurus/synonyms
ChicagoSmart Define. 2015. "unexpected thesaurus" https://smartdefine.org/unexpected/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, unexpected thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/unexpected/thesaurus/synonyms>.
MLASmart Define. "unexpected thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/unexpected/thesaurus/synonyms>