unachievable

English

Etymology tree

Proto-Indo-European *né

Proto-Indo-European *n̥-

Proto-Germanic *un-

Proto-West Germanic *un-

Old English un-

Middle English un-

English un-

Middle English achieven

English achieve

Proto-Indo-European *-tḗr

Proto-Indo-European *-dʰlomder.

Proto-Indo-European *-dʰlis

Proto-Italic *-ðlis

Latin -bilis

Latin -ābilis

Old French -ablebor.

Middle English -able

English -able

English achievable

English unachievable

unachievable (not comparable)

That cannot be achieved (or only with great difficulty).
- 2015 October 23, Cillian McGrattan, The Politics of Trauma and Peace-Building: Lessons from Northern Ireland, Abington; New York: Routledge, →ISBN, page 2:
  However, the limitations of a storytelling project such as this seems to be that the notion of validation is unachievable mainly because it falls short of the so-called 'Hitchens's razor': that 'that which can be asserted without evidence can be dismissed without evidence'.
- 2021 November 3, Paul Clifton, “Network News: Rolling stock concerns as '701s' "not fit for purpose"”, in RAIL, number 943, page 21:
  Driver training has yet to take place, making SWR's promise of entry into passenger service this year looking unachievable.

that cannot be achieved