Meaning & use
Brainiac
Last updated
An extremely intelligent or knowledgeable person, especially one seen as intellectually superior.
See it in a sentence
The team's brainiac solved the puzzle in under a minute.
He was known in college as the resident brainiac who aced every exam.
A note on using this word
The word blends 'brain' with the suffix '-iac' (as in 'maniac') and was popularized partly by a Superman comic-book villain of the same name.
Words with a similar meaning
geniusegghead
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Words with an opposite meaning
dunce
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