3
careless(adjective, sure, arrogant)
3
cool(rude, certain, sure, impudent, haughty)
3
forward(adjective, cool, attitude, rude, courtesy)
3
haughty(adjective, conceited, egotistic)
3
overbold
3
vainglorious
2
assertive(certain, sure, guaranteed)
2
assuming(adjective, cool, attitude, rude, familiar)
2
bigheaded(haughty, conceited, egotistic)
2
cavalier(haughty, rashness, conceited, egotistic)
2
decided(certain, sure, guaranteed)
2
egotistical
2
hasty
2
imperious(haughty, conceited, egotistic)
2
incautious
2
irrefutable(adjective, certain, sure, guaranteed)
2
malapert(adjective, attitude, courtesy, impudent)
2
opinionated
2
poised(certain, sure, confident, self-confident, guaranteed)
2
pompous(adjective, rude, arrogant, haughty, conceited)
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APASmart Define. (2015). overconfident thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/overconfident/thesaurus/synonyms
ChicagoSmart Define. 2015. "overconfident thesaurus" https://smartdefine.org/overconfident/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, overconfident thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/overconfident/thesaurus/synonyms>.
MLASmart Define. "overconfident thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/overconfident/thesaurus/synonyms>