Expiable definitions

Webster's 1828 Dictionary

EX'PIABLE, a. [L. expiabilis. See Expiate.]
That may be expiated; that may be atoned for and done away; as an expiable offense; expiable guilt.

WordNet (r) 3.0 (2005)

adj
1: capable of being atoned for

Merriam Webster's

adjective see expiate

Webster's 1913 Dictionary

Expiable Ex"pi*a*ble, a. [See Expiate.] Capable of being expiated or atoned for; as, an expiable offense; expiable guilt. --Bp. Hall.