Antonyms for silent

quiet; speechless:

clamorous, communicative, noisy, talkative, tangible, explicit.

noun:

glib, voluble, hearable, fluent, well-spoken, gossipy, rip-roaring, expressed, prolix, speaking, wordy, silver-tongued, talebearing, communicatory, free-spoken, tumultuous, diffuse, uproarious, smooth-tongued, outspoken, facile, eloquent, roistering, unquiet, long-winded, rambling, windy, free.