9
accidentally(adverb, unintentionally)
5
unintentionally
4
circumstantially
3
unexpectedly
2
inadvertently
2
haphazardly
2
unknowingly
1
incidentally
1
innocently
1
happily
1
instinctively
1
involuntarily
1
spontaneously
1
unconsciously
1
unwittingly
0
randomly
0
by chance(expression, idiom)
0
subconsciously
0
adventitiously
0
aimlessly
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APASmart Define. (2015). intentionally thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/intentionally/thesaurus/antonyms
ChicagoSmart Define. 2015. "intentionally thesaurus" https://smartdefine.org/intentionally/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2015, intentionally thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/intentionally/thesaurus/antonyms>.
MLASmart Define. "intentionally thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/intentionally/thesaurus/antonyms>