American Heritage Dictionary
(3)
Century Dictionary
(4)
GNU Webster's 1913
(1)
WordNet
(3)
Elsewhere on the web
Finally, I have to say something about all the cheap shots that Bauerlein takes that are aimed at the brain-stultifying din of crappy pop music that no one is defending, and precisely the kind of music that teens are rejecting through Internet radio and other online alternatives to what he not very carefully considers to be the ubiquitous pap of "Tupac and Britney."— virtualpolitik
But No. 3 may come as a surprise: Houston, known for its oil refineries, stultifying, smog-choked humidity and polluted Galveston Bay.— Forbes.com: News
A radical idea may be healthy as a provocation; a temperate idea may be stultifying.— Amygdala

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