mellifluous

adjective2

1. •
   Flowing like honey.
2. •
   (figurative) Sweet, smooth and musical; pleasant to hear (generally used of a person's voice, tone or writing style).

   • […] Socrates […] VVisest of men; from vvhose mouth issued forth / Mellifluous streams that vvater'd all the schools / Of Academicks old and nevv […] — 1671