mute

Synonyms: aphasiac aphasic aphonic muffled mum quiet silenced silent speechless tongueless tongue-tied unexpressed unpronounced unsounded unspeaking unspoken voiceless wordless

Antonyms: articulate speaking vocal

Synonyms: benumb bottle up cork up dampen deaden decrease the volume drown gag hush keep it down lower moderate muzzle pipe down put damper on put the lid on reduce silence soften soft-pedal subdue turn down

Antonyms: articulate speak voice