1. the quality of being extremely unpleasant or offensive in behavior or attitude

Examples

• His obnoxiousness at the party made everyone uncomfortable.
• The customer’s obnoxiousness toward the staff was completely unnecessary.
• She was known for her obnoxiousness during meetings, constantly interrupting others.
• The obnoxiousness of his comments drove people away from the discussion.
• Despite his talent, his obnoxiousness prevented him from making friends.
• The teacher addressed the student’s obnoxiousness with a firm warning.