noun
strange thing; odd thing
Dated noun for something unusual or peculiar. Not used in modern everyday speech.
彼は異なことを口にした。
He said a strange thing.
interjection
how absurd!; preposterous!
Dated interjection expressing disbelief or ridicule, often used in the phrase 異な事を. Archaic in modern Japanese.
異な事を!そんな話があるものか。
How absurd! There's no way such a story could be true.