inexpiable

UK: /ɪnˈɛkspɪəb^əl/ US: (in eks′pē ə bəl)

WordReference Random House Unabridged Dictionary of American English © 2025

in•ex•pi•a•ble  (in eks′pē ə bəl), adj. 

1. not to be expiated;
   not allowing for expiation or atonement:
   an inexpiable crime.
2. [Obs.] implacable:
   inexpiable hate.

• Latin inexpiābilis. See in-³, expiable
• 1560–70

in•ex′pi•a•ble•ness, n. 
in•ex′pi•a•bly, adv. 

Collins Concise English Dictionary © HarperCollins Publishers::

inexpiable / ɪnˈɛkspɪəb^əl/ adjective

1. incapable of being expiated; unpardonable
2. implacable

inˈexpiableness noun