'Expiable' definitions:

Definition of 'expiable'

(from WordNet)
adjective
Capable of being atoned for

Definition of 'Expiable'

From: GCIDE
  • Expiable \Ex"pi*a*ble\, a. [See Expiate.] Capable of being expiated or atoned for; as, an expiable offense; expiable guilt. --Bp. Hall. [1913 Webster]