1.VerbTo stunt, inhibit (progress, ideas, etc.) or make dull and uninteresting, especially through routine that is overly restrictive or limiting. .mw-parser-output .defdate{font-size:smaller}
"Bureaucracy and over-regulation have stultified the economy."
2.VerbTo make useless or worthless.
"His business plan was stultified by new technologies."
3.VerbTo cause to appear foolish; to deprive of strength; to stupefy.
"The politicians continued to stultify themselves."
4.VerbTo prove to be of unsound mind or demonstrate someone's incompetence.