euphonious
1. [ adjective ] (of speech or dialect) pleasing in sound; not harsh or strident
Examples:

"her euphonious Southern speech"

Related terms: dialect soft
2. [ adjective ] having a pleasant sound
Synonyms: euphonous
Examples:

"a euphonious trill of silver laughter"

Related terms: cacophonous silvern golden
Similar spelling:   euphonous
  euphonic
  euphonical