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

• audacious
• brash
• daredevil
• foolhardy
• madcap
• overbold
• reckless
• temerarious

Examples of overconfident in a Sentence

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

Recent Examples on the Web

Do not make the mistake of being too overconfident about your new business. —Sho Dewan, Forbes.com, 18 Apr. 2025

Balance enthusiasm with professionalism by showing energy without appearing desperate or overconfident. —Caroline Castrillon, Forbes, 2 Mar. 2025

But human physicians can also be overconfident in their reasoning abilities, and may wrongly ignore correct diagnoses offered by patients, non-physician health workers or AI systems. —Paul Hsieh, Forbes, 28 Feb. 2025

At the meeting, Hanes seemed oddly nonchalant, exuding the air of an overconfident salesman. —David Yaffe-Bellany, New York Times, 19 Feb. 2025

Word History

First Known Use

circa 1617, in the meaning defined above

Rhymes for overconfident

• confident