/ ɪnˈkɒnstənt; NAmE -ˈkɑːn-/ adjective
( formal ) not faithful in love or friendship
SYN fickle
OPP constant
► in·con·stancy / -ənsi; NAmE / noun [ U ]
••
WORD ORIGIN
late Middle English : via Old French from Latin inconstant- , from in- not + constant- standing firm (from the verb constare , from con- with + stare stand).