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brainiac Synonyms
Another word for brainiac
Choosing another word for brainiac that fits your sentence is easier when synonyms and similar words are paired with an exact noun definition and ranked by match strength.
• noun (Context 1)
A very intelligent, studious, or academically gifted person (used informally).
Usage Example
"Whenever we get stuck on a difficult calculus problem, we ask the resident genius in our study group for help."
Strongest
genius
egghead
Strong
whiz
mastermind
intellectual
prodigy
Weak
smart aleck
Opposites of brainiac
The opposite of brainiac shifts depending on context. Common opposites include:
dunce
blockhead
dimwit
simpleton
airhead
fool
• Nearby Words
Cite this Entry
Wordmom. (2026). Synonyms for Brainiac. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/brainiac