Ethan was aware that, in regard to the important question of surgical intervention, the female opinion of the neighbourhood was divided, some glorying in the prestige conferred by operations while others shunned them as indelicate.
There are no more uses of "indelicate" in the book.
Show samples from other sources
I finally made it to the landing and, with one final indelicate grunt, pulled the trunk onto it after me.
Ransom Riggs -- Miss Peregrine’s Home for Peculiar Children
It may be indelicate of me to mention it, but I seem to have been equipped at birth with the equivalent of an echo chamber in my stomach regions.