Definition of "immemorable" [im•mem•o•ra•ble]

• That cannot be remembered or has been forgotten. (adjective)
• Whose origins have been forgotten; immemorial. (adjective)

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• "To me the word recalls immemorable associations -- vistas of narrow old streets redolent of the Renaissance, echoing still with brawl and clash of arms, and haunted by the general stock in trade of the artist's historical fancy."
• "It was in the dusk of Death's fluttery wings that Tarwater thus crouched, and, like his remote forebear, the child-man, went to myth-making, and sun-heroizing, himself hero-maker and the hero in quest of the immemorable treasure difficult of attainment."
• "The shoreline is littered with oyster and clam shells cultivated over time immemorable."