неустановившийся
прил. alterable, doubting, dubious, flickering, groggy, impermanent, in-between, infirm, labile, rickety, unballasted, unequable, unsettled, unsteady, unsure, vacillating, waggly, wavy, badly organized, intervening, not put in order
Большой англо-русский и русско-английский словарь.
2001.