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

There is a better approach than making overconfident guesses: rigorously testing new practices and strategies and only widely advocating for the ones that have robust evidence of effectiveness. —Justin Reich, The Conversation, 3 Oct. 2025

The Chasm is a mockumentary comedy following an overconfident climber who, after losing his best friend and climbing partner to unexpected and unfortunate circumstances, chooses to proceed solo on a historic and potentially fatal rock climb. —Matt Grobar, Deadline, 22 Sep. 2025

Lee is a pest and a scoundrel, chronically broke and overconfident, maybe a talented writer or at least one who’s quick with literary references. —Nicholas Quah, Vulture, 22 Sep. 2025

However, Leiter managed to sound overconfident in the postgame, wrongfully declaring that the Yankees' bullpen is up there with the best of its peers. —Jackson Roberts, MSNBC Newsweek, 17 Sep. 2025

Word History

First Known Use

circa 1617, in the meaning defined above

Rhymes for overconfident

• confident