- to render absurdly or wholly futile or ineffectual, especially by degrading or frustrating means: Must we stultify the progress of these reforms with yet more red tape?
- to allege or prove (oneself or another person) to be of unsound mind.
- to make, or cause to appear, foolish or ridiculous.
- to become ineffectual or impaired, especially through frustrating, stifling, or deadening conditions: Without an environment of encouragement and creativity, the mind can stultify.
- to make useless, futile, or ineffectual, esp by routine
- to cause to appear absurd or inconsistent
- to prove (someone) to be of unsound mind and thus not legally responsible