Of or pertaining to having bad manners; impolite.(adjective)
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Use "bad-mannered" in a sentence
"Rude Britannia is a myth, say researchers from the Young Foundation, and often people don't realise they are being bad-mannered, for example, by not using headphones properly."
"The stories are, in true Sfar style, truly unusual, though they have more structure and a little more empathy than the unapologetically bad-mannered Sardine books."
"Steven Slater, a flight attendant who worked for twenty years dealing with the possibility of terrorists, a plane crash or, God help him, bad-mannered passengers, lost his temper after a female passenger ignored his instructions, prematurely retrieved her suitcase from the overhead compartment and hit him in the head with her bag."