mutable

(adjective)

adjective

1. capable of or tending to change in form or quality or nature

- a mutable substance

- mutable weather patterns

- a mutable foreign policy

Similar word(s): changeable

2. prone to frequent change; inconstant

- the fickle and mutable nature of truth

- the mutable ways of fortune

Similar word(s): inconstant

3. tending to undergo genetic mutuation

- It is likely, too, that the chromosomes of all eubacteria are as mutable as that of E. coli

Similar word(s): changeable, changeful