Not seriously
English: facetiously, jokingly, tongue-in-cheek
tongue-in-cheekEnglish
tongue-in-cheek, bantering, banteringly, facetious, facetiously
Adverb
In a bantering fashion
English: banteringly, tongue-in-cheek
Adjective
Cleverly amusing in tone
English: bantering, facetious, tongue-in-cheek