1
unexpectedly(adverb, short, sudden, suddenly, unawares)
1
unfavorably
1
unknowingly(short, sudden, suddenly, unexpectedly, unawares)
1
unprepared(adverb, suddenly, unexpectedly, unawares, astonishingly)
1
unready(adverb, suddenly, unexpectedly, unawares, astonishingly)
1
unsoundly
1
unsuitably
1
untruely
1
unwisely
1
unwittingly(adverb, short, sudden, suddenly, unexpectedly)
1
wrongfully
0
aberrant
0
ambidextrously
0
amorally
0
anecdotally
0
askew
0
asquint
0
assumed
0
bevel
0
blunder
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APASmart Define. (2015). mistakenly thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/mistakenly/thesaurus/synonyms
ChicagoSmart Define. 2015. "mistakenly thesaurus" https://smartdefine.org/mistakenly/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, mistakenly thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/mistakenly/thesaurus/synonyms>.
MLASmart Define. "mistakenly thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/mistakenly/thesaurus/synonyms>