Synonyms and related words :
abandoned, adrift, afloat, alternating, amorphous, bibulous, boisterous, capricious, changeable, changeful, crapulent, crapulous, desultory, deviable, disobedient, dizzy, eccentric, erratic, excessive, extravagant, extreme, fast and loose, fickle, fitful, flickering, flighty, flitting, fluctuating, frantic, freakish, frenzied, giddy, gluttonous, go-go, headstrong, heady, immoderate, impetuous, impulsive, inconsistent, inconstant, incontinent, indecisive, indulgent, infirm, inordinate, insubordinate, intemperate, irregular, irrepressible, irresolute, irresponsible, lawless, lax, licentious, loose, mazy, mercurial, moody, mutinous, nonrestrictive, out of control, overindulging, permissive, prodigal, rambling, rampant, reinless, restless, riotous, roving, scatterbrained, self-indulgent, self-willed, shapeless, shifting, shifty, shuffling, spasmodic, spineless, swinish, too much, unaccountable, unbridled, uncertain, unchecked, uncoerced, uncompelled, unconstrained, uncurbed, undependable, undisciplined, unfixed, unforced, unfrugal, ungoverned, uninhibited, unlimited, unmastered, unmeasured, unmuzzled, unpredictable, unreined, unreliable, unrepressed, unreserved, unrestrained, unrestrictive, unruly, unsettled, unstable, unstable as water, unstaid, unsteadfast, unsteady, unsubdued, unsuppressed, unthrifty, vacillating, vagrant, variable, vicissitudinary, vicissitudinous, volatile, wandering, wanton, wavering, wavery, wavy, wayward, whimsical, wild, wildcat, willful, wishy-washy