(ʌnˈsmaɪlɪŋlɪ) advin a serous or unsmiling mannerThesaurus
Adv.
1.
unsmilingly - without smile; in an unsmiling manner; "unsmilingly, he greeted his in-laws"smilingly - with smiles; in a smiling manner; "the girl reminded her smilingly of their childhood spent together"