Synonyms for Irremediable:

adj.

bad (adjective)
bad, displeasing, ill-suited, black, inadequate, unsatisfactory, vile, defective, inferior, unsound, unfavorable, inadvisable, invalid, poor, detrimental, wrong, unpleasant, baneful, wretched, faulty, arrant.
hopeless (adjective)
incurable, Cureless, bad, irreparable.
incurable (adjective)
Cureless.

n.

rigid, firm, invariable, final, unchanging, irreparable, deadly, constant, incurable, hopeless, unvarying, dire, for good, whatever happens. hope, Cureless.

Other synonyms:

Cureless. incurable. hopeless. incurable
irreparable.
Other relevant words:
hopeless, deadly, irreparable, final, Cureless, incurable.

Usage examples for irremediable

  1. I was oppressed with a nameless terror, an anguished sense that something had happened, something irremediable – A Woman Named Smith by Marie Conway Oemler
  2. Was irremediable mischief done? – Shirley by Charlotte Brontë
  3. The cultivation seemed scanty and the population thin, owing to the irremediable sterility of soil, from the poverty of the primitive rock from whose detritus it is chiefly formed. – Rambles and Recollections of an Indian Official by William Sleeman