disparagement

/dɪˈspɛrɪdʒmənt/
noun
  1. The act of speaking about someone or something in a negative or disrespectful way; criticism or belittlement.
    • She ignored the disparagement and continued to work on her project.
    • The article was full of unfair disparagement of the local community.
    • His constant disparagement of her ideas made her feel unwelcome in the meeting.