inconstant
C2Adjektiv/US /ɪˈnkɑːnstənt/ ĭˈnkänstənt; UK /ɪnkˈɒnstənt/ ĭnkˈnstənt/
Not constant; not stable or uniform; subject to change of character, appearance, opinion, inclination, or purpose, etc.; not firm; unsteady; fickle; changeable; variable; -- said of persons or things; as, inconstant in love or friendship.
