80 entries under adverb topic. ×

2
incidentally
2
astonishingly
2
casually
2
extra
2
fortuitously
2
haply
2
immediately(adjective, prompt, quick, timely)
2
instantly
2
minutely
2
off guard(expression, short, sudden, suddenly)
2
plunk
2
precipitately
2
precipitously(suddenly, abruptly)
2
startlingly
2
uncommonly
1
bang
1
abnormally
1
all of a sudden(expression, idiom, suddenly, abruptly)
1
amazingly
1
astoundingly
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APASmart Define. (2015). unexpectedly thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/unexpectedly/thesaurus/synonyms
ChicagoSmart Define. 2015. "unexpectedly thesaurus" https://smartdefine.org/unexpectedly/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, unexpectedly thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/unexpectedly/thesaurus/synonyms>.
MLASmart Define. "unexpectedly thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/unexpectedly/thesaurus/synonyms>