not curable; that cannot be cured, remedied, or corrected: an incurable disease.
not susceptible to change: his incurable pessimism.


a person suffering from an incurable disease.

Origin of incurable

First recorded in 1300–50; Middle English word from Late Latin word incūrābilis. See in-3, curable
Related formsin·cur·a·bil·i·ty, in·cur·a·ble·ness, nounin·cur·a·bly, adverb

Synonyms for incurable

2. unflagging, incorrigible, relentless. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for incurable



(esp of a disease) not curable; unresponsive to treatment


a person having an incurable disease
Derived Formsincurability or incurableness, nounincurably, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for incurable

mid-14c., from Old French incurable (13c.), from Late Latin incurabilis, from in- "not" (see in- (1)) + curabilis "curable" (see curable). Related: Incurably.

Online Etymology Dictionary, © 2010 Douglas Harper

incurable in Medicine




Being such that a cure is impossible; not curable.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.