gagged

adjective

Unable to speak due to something in or over the mouth, or metaphorically silenced.

"The gagged witness could not testify."

verb

Had something placed in or over the mouth to prevent speaking or making noise.

"The hostage was gagged and tied up."

Thesaurus

Synonyms: muzzle, gag, choke, quip, fret, strangle, suffocate, heave, retch, joke, jape, jest