(a.) Changeable; not stable or uniform\; subject to change of character, appearance, opinion, inclination, or purpose, etc.; not firm; unsteady; fickle; variable; -- said of persons or things; as, inconstant in love or friendship.

adrift afloat alternating amorphous brittle broken capricious careening catchy changeable changeful changing choppy coquettish corruptible deciduous derelict desultory deviable deviating deviative deviatory different disaffected disconnected discontinuous disloyal disorderly disregardful divaricate divergent diversified diversiform dizzy dying eccentric elusive ephemeral erose erratic evanescent faddish fading faithless FALSE fast and loose fickle fitful fleeting flickering flighty flirtatious flitting fluctuating fly-by-night flying fragile frail freakish fugacious fugitive giddy guttering halting herky-jerky heteroclite immethodical impermanent impetuous impulsive inattentive inconsistent indecisive indefinite infirm inobservant insubstantial intermittent intermitting irregular irresolute irresponsible jagged jerky light lubricious lurching mazy mercurial momentary moody mortal motley mutable negligent nonadherent noncompliant nonconforming nonconformist nondurable nonobservant nonpermanent nonstandard nonuniform not true to of bad faith passing patchy perishable pluralistic protean quicksilver ragged rambling recreant restless rough roving scatterbrained scrappy shapeless shifting shifty short-lived shuffling skittish snatchy spasmatic spasmic spasmodic spastic spineless sporadic spotty staggering temperamental temporal temporary ticklish toying transient transitive transitory trothless unaccountable uncertain uncompliant unconforming uncontrolled undependable undisciplined undurable unenduring unequable unequal uneven unfaithful unfixed unloyal unmethodical unmetrical unobservant unorthodox unpredictable unregular unreliable unrestrained unrhythmical unsettled unstable unstable as water unstaid unsteadfast unsteady unsystematic untrue ununiform vacillating vagrant vague variable variegated variform various varying veering versatile vicissitudinary vicissitudinous volatile wandering wanton wavering wavery wavy wayward whimsical wishy-washy wobbling wobbly