Deficient or lacking: an ethically challenged politician. (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 "challenged" in a sentence
"I don't mean that he's crazy, but just kind of what they call challenged, which I guess must mean just this side of retarded."
"I'm quite convinced that there will be plenty of audience reaction that is - I'm going to use the word "challenged.""
"I guess the best way to put this to the economically "challenged" is to put it in right-wing terms: "excessive profits" must be like "pornography" - everyone knows it when they see it."