brainiac
(slang, sometimes, derogatory) A very intelligent and usually studious, erudite person.
ˈbɹeɪniækDocumented since 1950s1950sBoomerhistoricalCurrent149 viewsLast reviewed Jun 29, 2026＋ Add a definition
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Born ~1958 · 1 year of recorded use20th centurySee decade cohort →
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#1·Apr 26, 2026
(slang, sometimes, derogatory) A very intelligent and usually studious, erudite person.
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“Uh oh. Looks like the brainiac has had a change of heart on her previous belief that the victims get justice. Poor BoBo can’t keep her lies and claims straight”
With all the brainiacs in the world ... you'd think somebody would come up with a sunblock for ice cream.
Origin: , with influence from ENIAC, the name of an early computer. The term was coined as the name of the fictional supervillain Brainiac in the Superman series and first appeared in Action Comics comic book #242 in July, 1958.. Origin information sourced from Wiktionary contributors (CC BY-SA 4.0).
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Other words near "brainiac" (B)
brainbrain bleachbrainboxbrain dumpbrain fartbraingasmbrainpanbrain rotbrainrotbrainrot arcbrainrot checkbrainrot coded
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