Synonyms for Sonorously:

adv.

loudly (adverb)
stridently, blatantly, uproariously, vociferously, noisily, boisterously, clangorously, clamorously, loudly.
resonantly (adverb)
Resonantly, resoundingly, vibrantly.

adv

loudly (adverb)
stridently, blatantly, uproariously, vociferously, noisily, boisterously, clangorously, clamorously, loudly.
resonantly (adverb)
Resonantly, resoundingly, vibrantly.

n.

sonorously (noun)
rotundly.

Other synonyms:

Other relevant words:
rotundly.