noun, noun or participle which takes 'suru', transitive verb
A formal or literary term for change or alteration, often implying a fundamental or transformative shift. The reading へんえき is modern; へんやく and へんにゃく are obsolete.
社会の変易は時に激しい抵抗を生む。
Societal change sometimes provokes fierce resistance.
It will probably take a long time to alter this system.