stultifying

verb
  1. 1

    To prove to be of unsound mind or demonstrate someone's incompetence.

  2. 2

    To cause to appear foolish.

  3. 3

    To deprive of strength or efficacy; make useless or worthless.

Synonyms

adjective
  1. 1

    Tending to stultify.

Source: https://en.wiktionary.org/wiki/stultify, https://en.wiktionary.org/wiki/stultifying