Senses
堂皇 magnificent
stately and imposing; grand in appearance or scale
堂皇 ostensible
seemingly grand or dignified on the surface, often used to mask one's true motives or faults
堂皇 openly
(literary) openly and legally; in a dignified or frank manner
堂皇 official hall
(archaic) the main hall of a government office where officials carry out their duties