: unpleasant in a way that makes people feel offended, annoyed, or disgusted
He said some really obnoxious things about his ex-girlfriend at the party.
Some teenagers were being loud and obnoxious.
an obnoxious smell
Cite this Entry
“Obnoxious.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/obnoxious. Accessed 2 Aug. 2026.
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