unrememberableadj.
/(ˌ)ʌnrᵻˈmɛmb(ə)rəbl/, U.S. /ˌənrəˈmɛmb(ə)rəb(ə)l/ Not rememberable, unmemorable.
ΘΚΠ
the mind > mental capacity > memory > faulty recollection > [adjective] > forgettable
immemorable1552
unrecallable1611
unrememberable1803
irrememberable1830
forgettable1845
obliviscible1905
1803 Ann. Rev. 1 68 The topography of a country wherein every place has an unrememberable name.
1887 G. Saintsbury Hist. Elizabethan Lit. viii. 292 Vast heaps of things altogether unrememberable.
1942 J. Lees-Milne Ancestral Voices (1975) 43 She..wears a simple, unrememberable black dress.
2004 Columbia Oct. 13 I was going for total strangers, men comprehensively unfamiliar, unrememberable.
This entry has been updated (OED Third Edition, December 2014; most recently modified version published online December 2021).
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adj.1803