Synonyms of sonorously

2 Syllables
plainly, sharply, clearly
3 Syllables
markedly, surely, openly, audibly, seemingly, lucidly, overtly, patently, purely, certainly, obviously, distinctly
4 Syllables
conspicuously, evidently, undeniably, undoubtedly, acutely, discernibly, manifestly, noticeably, perceptibly, prominently, transparently, translucently, precisely, apparently, decidedly
5 Syllables
incontestably, penetratingly, recognizably, positively, indubitably, unmistakably, definitely
6 Syllables
incontrovertibly