100 entries under adjective topic. ×

1
haphazard(lucky, liable, unplanned, dependent)
1
immediate
1
not bargained for(expression, idiom, secret, unexpected)
1
occasional(chance, unplanned, unpremeditated)
1
odd(chance, lucky, liable, unplanned)
1
one-off
1
one-shot
1
opportune
1
queer
1
rare
1
secondary
1
strange
1
unadvertised
1
uncountable
1
undreamed-of
1
undreamed of
1
undreamt of
1
unlucky
1
unmeant
1
unparalleled
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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>