Shirabe
遺憾千万

遺憾いかん

Common I-adj Noun
English jmdict
1
adjectival nouns or quasi-adjectives (keiyodoshi)noun (common) (futsuumeishi) regrettable;unsatisfactory;deplorable;lamentable
それは遺憾ながら本当だ。
That, while regrettable, is true.
English jmdict
1
adjectival nouns or quasi-adjectives (keiyodoshi) yojijukugo formal or literary term extremely regrettable;deeply unfortunate;most disappointing;utterly deplorable
君がそれを知らないのは遺憾千万だ。
It is a great pity that you don't know it.