The Collaborative International Dictionary
Serio-comic
Serio-comic \Se`ri*o-com"ic\, Serio-comical \Se`ri*o-com"ic*al\, a. Having a mixture of seriousness and sport; serious and comical.
Usage examples of "serio-comic".
Clearly he must have shifted the scene of his operations farther west, because a year later he plays an incredibly audacious, but not a very profitable part, in a serio-comic business in Manila Bay, in which a peculating governor and an absconding treasurer are the principal figures.
The serio-comic periodical Punch, I remember, made a happy use of it in the political cartoon.