Definition of "uncool" []

• Slang Lacking assurance, self-control, or sophistication. (adjective)
• Slang Not in accord with the standards or mores of a specified group: "trying to teach children simply to reject drugs as uncool” ( Larry Martz). (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.

• "And I would say that some of these concepts that you label uncool are actually cool in Japan."
• "The “slutty flight attendant” line, though certainly uncalled for, seems to me equivalent to the sorts of things that are said about the Clintons and the Kennedys—uncool, that is to say, but roughly commensurate with the price of fame."
• "Best line: Matthews says that in college he developed an “intellectual anorexia” common among black men when he saw any display of intellect as “uncool, which is the definition of white.”"