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1. "More dumb than"
2. Having a lower intelligence than a certain person/thing.
"Hey, 2+2=5!"

"You're dumber than a rock.."
dumber by firegod678 February 22, 2005
Dumber (dum-er) adj. Way below normal intelligence.
Dumber by Anonymous February 23, 2003
Dumber is the word used by people who are trying to be funny by making what sounds like a grammatically incorrect sentence while it actually is perfectly correct.
Ur dumber!
- bUt iTs MoRe dUmB!
Dumber by Dyslexic Satn June 14, 2020
The person who is reading this instead of doing something meaning full with their life.
You are a dumber
Dumber by ;lkjhgvfcx July 6, 2021
Dumber is the word you would use to describe your best friend Rava because she is a dumb a$$ bitch! She also likes to eet shreks azz. That why she is dumber. (dumber is pronounced like lumber)
OMG! Did you see that gorl named rava.. she is the definition of DUMBER!
Dumber by UnKnOwN_69 April 24, 2020
yourself
I am DUMBER than most people
dumber by ufwleo July 1, 2022