doofus

noun

doo·​fus ˈdü-fəs 

-fis

variants or less commonly dufus

plural doofuses also dufuses ˈdü-fə-siz 

slang

: a stupid, incompetent, or foolish person

Synonyms of doofus

• fool
• lunatic
• idiot
• moron
• goose
• maniac

Examples of doofus in a Sentence

Don't be such a doofus.

I don't want to be partnered on the project with that doofus.

Recent Examples on the Web

Neelix is a big doofus who wears loud clothing and a chef’s hat, and sometimes saves the day, but mostly is there for people to talk to. — Jordan Hoffman, Entertainment Weekly, 4 July 2026

Cut to the now-twentysomething Adam (The Idea of You‘s hunk Nicholas Galitzine), explaining all of this wonky mythology to a date, who writes him off as a delusional, pretty-boy doofus. — David Fear, Rolling Stone, 4 June 2026

As disarming as Rockwell is with his wry balance of doofus, savant and wiseass, and as capable as Verbinski is at keeping the brushes with death coming at a sustained pace, the movie feels most original in its flashbacks. — David Rooney, HollywoodReporter, 5 Feb. 2026

That wasn’t just about two doofuses trying to outdo each other. — Maggie Fremont, Vulture, 26 Dec. 2025

Word History

Etymology

perhaps alteration of goof entry 1

First Known Use

1960, in the meaning defined above

Rhymes for doofus

• rufous