IPA: /ʌˈnɛrd/
KK: /ʌˈnɛrd/
Not broadcasted or shown on television or radio.
The unaired episode of the show has become a topic of discussion among fans.
Unaired → It is formed from "un-" (meaning not) and "aired" (from Old English "ærnan", meaning to flow or to be broadcast). The word "unaired" means not having been broadcast or not having been shown publicly.
Think of something that has not been 'aired' or shown to the public — 'un-' means not, and 'aired' relates to being broadcast.