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transitoriness, momentariness, temporariness, evanescence, fleetingness, impermanence, transience, ephemerality, transiency, impermanency, ephemeralness, disappearance, vanishing, evaporation, briefness, brevity, shortness, fugacity, caducity, volatility, instability, short-livedness, temporality, perishability, swiftness, quickness, mortality … more

escapees, runaways, deserters, refugees, absconders, truants, escapers, runagates, outlaws, dodgers, renegades, abscotchalaters, bolters, emigres, evacuees, exile, lamsters, outcasts, recluses, strays, walkouts, fly-by-nights, displaced persons, defectors, maroons, absentees, asylum seekers, quitters, flight risk, derelicts, missing persons, no-shows, AWOLs, abscondees, forsakers, heretics, mutineers, dissidents, turnabouts, abandoners, insurgents, apostates, iconoclasts, schismatics, lawbreakers, criminals, villains, offenders, delinquents … more