[f. prec. + -NESS.] The quality of being alterable; capability of being altered; alterability.
1655. Gouge, Comm. Hebr. xii. 27. III. 373. The Apostle giveth us to understand 1. The alterablenesse of the Law. Ibid., 381. The alterableness of the law is implied in this word, removing.
1755. in Johnson; and in mod. Dicts.