UNPLAYABLE
unplayable
(adjective) not capable of or suitable for being played or played on; “the golf ball was in an unplayable lie”; “the field was unplayable”; “some music seems almost unplayable”
Source: WordNet® 3.1
Etymology
Adjective
unplayable (comparative more unplayable, superlative most unplayable)
(of an audio or visual recording) Unable to be played on specified equipment, or at all.
(cricket, football, of the delivery of a ball) Impossible to play or to defend against.
(video games) That cannot be played, or is so tedious, complicated, buggy, etc. as to discourage or preclude playing.
Source: Wiktionary