Arab, Bowery bum, aberrant, aberrative, adrift, afloat, aimless, alternating, amorphous, arbitrary, beach bum, beachcomber, beggar, beggarly fellow, blighter, bo, budmash, bum, bummer, caitiff, capricious, changeable, changeful, circuitous, circumforaneous, cranky, crotchety, departing, derelict, desultory, deviable, deviant, deviating, deviative, deviatory, devil, devious, digressive, discursive, divagatory, dizzy, dogie, drifter, drifting, drunkard, eccentric, errant, erratic, excursive, fanciful, fantasied, fantastic, fast and loose, fickle, fitful, flaky, flickering, flighty, flitting, floating, fluctuating, footloose, footloose and fancy-free, freakish, fugitive, gadding, gamin, gamine, giddy, good-for-naught, good-for-nothing, guttersnipe, gypsy-like, gypsyish, harebrained, hobo, homeless waif, human wreck, humorsome, idler, impetuous, impulsive, inconsistent, inconstant, indecisive, indirect, infirm, irregular, irresolute, irresponsible, kinky, labyrinthine, landloper, landloping, lazzarone, loafer, losel, lowlife, maggoty, mauvais sujet, mazy, mean wretch, meandering, mercurial, migrational, migratory, moody, motiveless, mucker, mudlark, no-good, nomad, nomadic, notional, out-of-the-way, pauvre diable, perambulatory, peripatetic, petulant, piker, pilgarlic, planetary, poor creature, poor devil, quirky, ragamuffin, ragman, ragpicker, rambling, ranging, restless, roaming, rounder, roving, sad case, sad sack, sauntering, scatterbrained, serpentine, shapeless, shifting, shifty, shuffling, ski bum, skid-row bum, snaky, spasmodic, spineless, stiff, straggling, stray, straying, street Arab, street urchin, strolling, sundowner, surf bum, swagman, swagsman, swerving, tatterdemalion, temperamental, tennis bum, traipsing, tramp, transient, transitory, transmigratory, truant, turning, turnpiker, twisting, unaccountable, uncertain, uncontrolled, undependable, undirected, undisciplined, unfixed, unpredictable, unreasonable, unreliable, unrestrained, unsettled, unstable, unstable as water, unstaid, unsteadfast, unsteady, urchin, vacillating, vag, vagabond, vagarious, variable, vaurien, veering, vicissitudinary, vicissitudinous, volatile, waif, waifs and strays, wandering, wanton, wastrel, wavering, wavery, wavy, wayfaring, wayward, whimsical, winding, wishy-washy, worthless fellow, wretch, zigzag