dumber

ADJECTIVE

unable to speak

Synonyms

STRONGEST

speechless

WEAK

at a loss for words inarticulate incoherent mousy mum mute quiet silent soundless tongue-tied uncommunicative voiceless wordless

Antonyms

WEAK

bright intelligent sharp smart speaking

ADJECTIVE

stupid, unintelligent

Synonyms

STRONGEST

dull foolish

WEAK

dense dim-witted doltish feebleminded moronic simple-minded thick

Antonyms

WEAK

bright intelligent sharp smart speaking

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

My plan was to look like John Fogerty, but instead I ended up looking like the guy from the movie ‘Dumb and Dumber.’

From Los Angeles Times • Nov. 15, 2025

Performed by 29-year-old Jere Pöyhönen, dressed as Jim Carrey in Dumb and Dumber, it took me on quite a journey.

From BBC • Apr. 5, 2023

He referred to two especially persistent paparazzi as Tweedle Dumb and Tweedle Dumber.

From New York Times • Jan. 10, 2023

It’s like the moment in Dumb and Dumber where he’s like, “What’s my chance here?”

From Slate • Apr. 4, 2022

I knew she wasn’t waiting for Dumb or Dumber to come up with anything brilliant, she was just lining up her thoughts.

From "Anthem of a Reluctant Prophet" by Joanne Proulx