1
noun (common) (futsuumeishi)
impiety;irreverence
1
adjectival nouns or quasi-adjectives (keiyodoshi)noun (common) (futsuumeishi)
pious;devout
いかにも敬虔なるクリスチャンが送る、礼節重き言葉です。
So characteristic of what a pious Christian would say, this courteous phrase.
Other forms
敬けん 【けいけん】 (search-only kanji form) · 敬謙 【けいけん】 (search-only kanji form)