"stultified" in the verb sense
prove to be of unsound mind or demonstrate someone's incompetence
"nobody is legally allowed to stultify himself"
cause to appear foolish
"He stultified himself by contradicting himself and being inconsistent"
3. cripple, stultify
deprive of strength or efficiency make useless or worthless
"This measure crippled our efforts"
"Their behavior stultified the boss's hard work"
Source: WordNet® (An amazing lexical database of English)
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