39 entries under adverb topic. ×

12
accidentally(short, sudden, suddenly, unexpectedly)
10
inadvertently(short, sudden, suddenly, unexpectedly)
7
casually(intention, accidentally)
7
involuntarily
5
by chance(expression, adjective, idiom, intention)
5
fortuitously(adjective, intention, fortunately, luckily)
5
unawares(suddenly, unexpectedly)
5
unwittingly(adjective, short, intention, sudden)
4
randomly(intention, accidentally)
4
unconsciously(short, sudden, suddenly, unexpectedly)
4
unexpectedly(short, sudden, suddenly, unawares)
3
carelessly(short, sudden, suddenly, unexpectedly)
3
circumstantially
3
haphazardly(adjective, accidentally)
3
instinctively
2
aimlessly
2
causelessly
2
incidentally
2
mistakenly(short, sudden, suddenly, unexpectedly)
2
spontaneously
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APASmart Define. (2015). unintentionally thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unintentionally/thesaurus/synonyms
ChicagoSmart Define. 2015. "unintentionally thesaurus" https://smartdefine.org/unintentionally/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, unintentionally thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unintentionally/thesaurus/synonyms>.
MLASmart Define. "unintentionally thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/unintentionally/thesaurus/synonyms>