smiling /ˈsmaɪlɪŋ/adjective 1noun 1forms 4 adjective1 •That smiles or has a smile.Serene, smiling, enigmatic, she faced him with no fear whatever showing in her dark eyes. The clear light of the bright autumn morning had no terrors for youth and health like hers. — 1910 noun1 •The action of the verb to smile.Smiling takes fewer muscles than frowning. formssmilings · more smiling · most smiling · smilingest