moot

Adjective B2 – Upper-Intermediate

Open to argument, or no longer having any practical importance, depending on context.

"Since the flight was already cancelled, the question of which seat to choose became moot."

'Moot' has two nearly opposite senses: in British English it usually means debatable, while in American English it often means no longer relevant because the matter is already resolved.

Synonyms

debatable arguable

Antonyms

settled