1. (

• mutable ,
• changeable ,

) capable of or tending to change in form or quality or nature; "a mutable substance"; "mutable weather patterns"; "a mutable foreign policy" ;

2. (

• mutable

) prone to frequent change; inconstant; "the fickle and mutable nature of truth"; "the mutable ways of fortune" ;

3. (

• mutable

) tending to undergo genetic mutuation; "It is likely, too, that the chromosomes of all eubacteria are as mutable as that of E. coli" ;