hypercriticism

/ˌhaɪpərˈkrɪtɪˌsɪzəm/
noun
  1. Excessive or unreasonably severe criticism, especially of minor or unimportant details.
    • Hypercriticism of the proposal prevented the team from moving forward with any plan.
    • Her hypercriticism of the restaurant's decor ruined the dinner for everyone else.
    • The teacher's hypercriticism made students afraid to ask questions in class.