1. 使思维迟钝;使厌烦;使呆滞
If something stultifies you, it makes you feel empty or dull in your mind, because it is so boring.

1. deprive of strength or efficiency
make useless or worthless

e.g. This measure crippled our efforts
Their behavior stultified the boss's hard work

Synonym: cripple

2. cause to appear foolish

e.g. He stultified himself by contradicting himself and being inconsistent

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

e.g. nobody is legally allowed to stultify himself