(s)angelic, angelical, cherubic, seraphic, sweethaving a sweet nature befitting an angel or cherub“an angelic smile”, “a cherubic face”, “looking so seraphic when he slept”, “a sweet disposition”
(r)sweetly, sweetin an affectionate or loving manner (`sweet' is sometimes a poetic or informal variant of `sweetly')“Susan Hayward plays the wife sharply and sweetly”, “how sweet the moonlight sleeps upon this bank” (Shakespeare), “talking sweet to each other”