Varying from or not adhering to the standard: nonstandard lengths of board. (adjective)
Linguistics Associated with a language variety used by uneducated speakers or socially disfavored groups.(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 "nonstandard" in a sentence
"Yeah she has some extra metal in nonstandard parts of her anatomy but that is just fashion."
"And when they hear the word nonstandard, a lot of people run in the other direction."
"'' This is what I call a nonstandard, Thierer said."