From Longman Dictionary of Contemporary Englishbe wreathed in smilesbe wreathed in smiles literaryHAPPYto be smiling and look very happy His plump face was wreathed in smiles. → wreathe
Examples from the Corpus
be wreathed in smiles• The next day, Emily came to work wreathed in smiles.• Their dark faces were wreathed in smiles but there was a certain stillness in the eyes. 