48 entries under adverb topic. ×

17
by chance(expression, adjective, idiom, circumstance)
17
unintentionally(short, sudden, suddenly, casually)
12
incidentally
11
casually(circumstance, unexpectedly, chance 2, haphazardly)
11
unexpectedly(short, circumstance, unprepared, sudden)
7
perchance
7
by accident(expression, idiom, short, sudden)
7
circumstantially
6
fortuitously(adjective, unexpectedly, casually, fortunately)
6
inadvertently(short, sudden, suddenly, unexpectedly)
6
randomly
5
adventitiously
5
haphazardly
5
unawares(suddenly, unexpectedly)
5
unconsciously(short, sudden, suddenly, unexpectedly)
4
unwittingly(short, sudden, suddenly, unexpectedly)
4
aimlessly(unexpectedly, casually, haphazardly, erratically)
4
coincidentally
3
involuntarily
2
by mistake(expression, adjective, short, sudden)
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APASmart Define. (2015). accidentally thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/accidentally/thesaurus/synonyms
ChicagoSmart Define. 2015. "accidentally thesaurus" https://smartdefine.org/accidentally/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, accidentally thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/accidentally/thesaurus/synonyms>.
MLASmart Define. "accidentally thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/accidentally/thesaurus/synonyms>