overconfident

adjective

over·​con·​fi·​dent ˌō-vər-ˈkän-fə-dənt 

-ˌdent

: excessively or unjustifiably confident : having too much confidence (as in one's abilities or judgment)

an overconfident driver

wasn't overconfident about their chances of winning

… he often starts cold, missing a few shots, allowing his opponent to get on a roll, to get overconfident.

—Brett Forrest

overconfidently adverb

overconfidently predicted the team would win

Synonyms

• reckless
• courageous
• brave
• daredevil
• foolhardy
• adventurous

Examples of overconfident in a Sentence

the overconfident quarterback made some careless decisions that cost him the game

Recent Examples on the Web

Harvard found in an experiment with nearly 300 executives, that those who relied on ChatGPT for stock price forecasts grew more optimistic and overconfident — and ultimately made worse predictions than peers who worked with other humans to discuss the logic. —Lutz Finger, Forbes.com, 19 Aug. 2025

There are the clever visual gags allowed by animation, like characters who quite literally shoot daggers at one another while locked in a glaring match; there are many jokes at the imperious, overconfident Marioneta’s expense. —Alison Herman, Variety, 17 Aug. 2025

In some of the deaths, overconfident tourists have ventured off-trail, or gotten lost in steep, technical terrain, without proper experience or equipment. —Owen Clarke, Outside Online, 16 Aug. 2025

And Fleury more or less fills Peacemaker’s old function on the show as the wildly overconfident guy who will say whatever tasteless, ignorant thing that comes into his head. —Alan Sepinwall, Rolling Stone, 15 Aug. 2025

Word History

First Known Use

circa 1617, in the meaning defined above

Rhymes for overconfident

• confident