uncoarse
/ˌʌnˈkoʊrs/Definitions
1. adjective
not coarse or rough
“The uncoarse sand helped to smooth out the surface.”
2. adjective
not rough or unpleasant to the ear or eye
“The uncoarse melody played by the violinist was soothing.”
3. adverb
in a way that is not coarse or rough
“She spoke uncoarse, her voice gentle and soothing.”