Definition of "unforgot"

Wept,—for an impress on the face she viewed—The stamp of feelings she remembered not; His voice was calmer now, but more subdued, Not like the voice long loved and unforgot!

1896, Jean Ingelow, Poems by Jean Ingelow, […]‎, volume II

I pine with heart-pain unforgot; / Down through my arbour grass it rolled, / My own pearl, precious, without spot.

1908, Sophie Jewett, The Pearl‎