(ˈ)gil|bərd.ēən adjective
Usage: usually capitalized
Etymology: William S. Gilbert died 1911 English playwright + English -ian
: of, relating to, or suggesting the playwright Gilbert or the comic, wildly improbable, or topsy-turvy situations found in the Gilbert and Sullivan operas
a Gilbertian world, peopled with foundlings and changelings — T.C.Worsley
by various Gilbertian maneuvers … secured for himself the key positions — K.N.Cameron