Antonyms of adj immutable

1 sense of immutable

Sense 1
immutable (vs. mutable), changeless -- (not subject or susceptible to change or variation in form or quality or nature; "the view of that time was that all species were immutable, created by God")

mutable (vs. immutable), changeable -- (capable of or tending to change in form or quality or nature; "a mutable substance"; "the mutable ways of fortune"; "mutable weather patterns"; "a mutable foreign policy")

Similarity of adj immutable

1 sense of immutable

Sense 1
immutable (vs. mutable), changeless -- (not subject or susceptible to change or variation in form or quality or nature; "the view of that time was that all species were immutable, created by God")