That has been interrupted, suppressed etc(adjective)
Simple past tense and past participle of stifle.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "stifled" in a sentence
""Look you," he said in stifled gutturals, turning to St. Vincent."
"Thanks to the heroic Carter Phone Company making a phone other than black, and suing to break the government imposed monopoly, the communications industry has been making spectacular progress after begin stifled for three-quarters of a century."
"JT_Lancer says: the communications industry has been making spectacular progress after begin stifled for three-quarters of a century."