I. adjective
1.
Synonyms: dumb 1, inarticulate, silent, speechless, unarticulate, voiceless
2.
Synonyms: silent 2, dumb, mum, ||mumchance, speechless, wordless
Contrasted words: articulate, eloquent, fluent, glib, vocal, voluble
II. verb
Synonyms: muffle 2, dampen, deaden, stifle