incivility

/ˌɪnsəˈvɪləti/
noun
  1. Rude or impolite behavior or speech; lack of courtesy.
    • She was shocked by the incivility of the customer who shouted at the cashier.
    • Politeness can go a long way in reducing incivility in public spaces.
    • The constant incivility in online comments made the discussion unpleasant for everyone.
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