mutable
Synonyms
changeable
changeful
mobile
transient
ephemeral
inconstant
unsteadfast
fickle
fitful
undecided
restless
Antonyms
Mu"ta*ble, a. Etym: [L. mutabilis, fr. mutare to change. See Move.] 1. Capable of alteration; subject to change; changeable in form, qualities, or nature. Things of the most accidental and mutable nature. South. 2. Changeable; inconstant; unsettled; unstable; fickle. "Most mutable wishes." Byron. Syn. -- Changeable; alterable; unstable; unsteady; unsettled; wavering; inconstant; variable; fickle.