Definify.com
Webster 1913 Edition
Compoundable
Com-pound′a-ble
,Adj.
 That may be compounded. 
Webster 1828 Edition
Compoundable
COMPOUNDABLE
,Adj.
  Definition 2025
compoundable
compoundable
English
Adjective
compoundable (comparative more compoundable, superlative most compoundable)
- That can be compounded.