1
chance(adjective, careless, thoughtless)
1
unintentional(adjective, careless, thoughtless)
1
unplanned(adjective, forgotten)
1
unwitting(adjective, careless, thoughtless)
0
accidental(adjective, casual)
0
casual
0
careless(adjective, thoughtless)
0
coerced
0
disregarded(adjective, forgotten)
0
fluky
0
forced
0
forgotten
0
fortuitous
0
heedless(adjective, careless, thoughtless)
0
ignorant(adjective, careless, thoughtless)
0
imprudent(adjective, careless, thoughtless)
0
inadvertent
0
inattentive(adjective, careless, thoughtless)
0
incautious(adjective, careless, thoughtless)
0
incidental
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APASmart Define. (2015). prepense thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/prepense/thesaurus/antonyms
ChicagoSmart Define. 2015. "prepense thesaurus" https://smartdefine.org/prepense/thesaurus/antonyms (accessed September 20, 2026).
HarvardSmart Define 2015, prepense thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/prepense/thesaurus/antonyms>.
MLASmart Define. "prepense thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/prepense/thesaurus/antonyms>