Synonyms|127Antonyms|68|Broader|22Narrower|7Related|87

32 entries under adjective topic. ×

3
unannounced(sudden, not expected, not planned)
3
unawares(adverb, sudden, not expected, not planned)
2
ad-lib(sudden, not expected, not planned)
2
ad hoc(sudden, not expected, not planned)
2
adventitious(sudden, not expected, not planned)
2
extemporaneous(sudden, not expected, not planned)
2
extempore(sudden, not expected, not planned)
2
impromptu(sudden, not expected, not planned)
2
improvident(sudden, not expected, not planned)
2
inadvertent(sudden, not expected, not planned)
2
inconceivable(sudden, not expected, not planned)
2
innocent(sudden, not expected, not planned)
2
instinctive(sudden, not expected, not planned)
2
involuntary(sudden, not expected, not planned)
2
piecemeal(sudden, not expected, not planned)
2
sudden(not expected, not planned)
2
undreamed of(sudden, not expected, not planned)
2
unexpected(sudden, not expected, not planned)
2
unforeseen(sudden, not expected, not planned)
2
unintended(sudden, not expected, not planned)
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APASmart Define. (2015). as expected thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/as_expected/thesaurus/antonyms
ChicagoSmart Define. 2015. "as expected thesaurus" https://smartdefine.org/as_expected/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2015, as expected thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/as_expected/thesaurus/antonyms>.
MLASmart Define. "as expected thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/as_expected/thesaurus/antonyms>