9 Grammatical Pitfalls


[brey-nee] /ˈbreɪ ni/
adjective, brainier, brainiest. Informal.
intelligent; clever; intellectual.
Origin of brainy
1835-45; brain + -y1
Related forms
brainily, adverb
braininess, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for brainy
  • Thus, the only way the cortex of humans and other brainy species can fit into the skull is by folding.
  • Have to give all those brainy people something to do.
  • Dazzled as much by her brainy astronomical riffs as by her blond bombshell good looks, he persuades her to marry him.
  • What would happen when the brainy guys keep on joining financial world.
  • He is brainy, he is confident, he is parsimonious with social interaction.
  • Among the invertebrates the octopus, squid and cuttlefish are rather brainy.
  • It was a common sport among us brainy younguns to spot mistakes in them.
  • He would sit out lucky streaks by opponents by relying on the belief that over time his brainy, measured tactics would prevail.
  • brainy but easily distracted, the author barely made it through high school and dropped out of college.
  • The patterers were the brainy, sophisticated ones-the self-proclaimed aristocracy of the street.
British Dictionary definitions for brainy


adjective brainier, brainiest
(informal) clever; intelligent
Derived Forms
brainily, adverb
braininess, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for brainy

1845, from brain (n.) + -y (2). Latin equivalent cerebrosus meant "passionate, hot-headed," leading Tucker to remark that " 'Brainy' is not a natural expression for 'frantic.' "

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
Slang definitions & phrases for brainy



Intelligent; sagacious (1840s+)

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
Cite This Source

Word of the Day

Difficulty index for brainy

Some English speakers likely know this word

Word Value for brainy

Scrabble Words With Friends

Quotes with brainy

Nearby words for brainy