Having a brain. Often used in combination: small-brained reptiles. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "brained" in a sentence
"Since the Kennedy cousin brained Martha Moxley with a five iron, I propose that we outlaw golf."
"They gods needed to achieve their goals, and if high-level "brained" individuals were allowed in these positions they would do what was in their self-interest and that woudl be the best job in the capacity entrusted to them."
""I was raised in a country where they took fools out an 'brained 'em with an axe."