Definition of alterableness in English:

alterableness

noun

rare

Pronunciation

alterableness

/ˈɔːlt(ə)rəblnəs/ /ˈɒlt(ə)rəblnəs/

Origin

Mid 17th century; earliest use found in William Ames (1576–1633), theologian and university teacher. From alterable + -ness.