Unrevivable

Part of speech: adjective

Definitions

1. Impossible to restore to life or consciousness after being dead or comatose
2. Unable to be revived or brought back to a functioning or living state
3. Incapable of being brought back to life, consciousness, or working order

Etymology: "Unrevivable" is a plain formation: the prefix "un-", meaning "not," attached to "revivable," which is itself built from "revive" plus the suffix "-able," meaning "capable of being." Together they describe something that cannot be brought back to life, consciousness or vigour. The base "revive" came into English from Old French "revivre," which goes back to Latin "revivere," "to live again," combining "re-" (again) with "vivere" (to live). The same Latin root "vivere" gave English "vivid," "vital" and "survive," so "unrevivable" carries the same idea of life at its core, with two layers of negation and possibility stacked on top.