Darkened with smoke and grime; dirty or discolored.(adjective)
Shabby, drab, or squalid.(adjective)
Slang Crazy; insane.(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 "dingy" in a sentence
"The poor live in dingy cubes of space stacked on top of each other like ice cube trays, twelve stories high even in the slums."
"One of my policies is to avoid motels where you need to communicate with the clerk through a slot in dingy bulletproof glass."
"For decades a foreign proletariat toiling in dingy factories from Vladivostok to Karl-Marx-Stadt helped bankroll Pyongyang's transformation into a proud monument to ethnic self-reliance, so that someday a Bruce Cumings could boast that it is anything but the ugly Communist capital one might expect."