What's the adjective for vanishments? Here's the word you're looking for.
Included below are past participle and present participle forms for the
verbs vanish and vanishify which may be used as adjectives within certain contexts.
“To one listening, drowsed with the intense sunshine, the buzz, mutter, and snarl of gossiping Omahas seemed like the grotesque echoes from a vanished age.”
vanishified
simple past tense and past participle of vanishify