adj. 25B6; adjective
the protean nature of mental disorders : EVER-CHANGING, variable, changeable, mutable, kaleidoscopic, inconstant, inconsistent, unstable, shifting, unsettled, fluctuating, fluid, wavering, vacillating, mercurial, volatile; technical labile.
a remarkably protean composer : VERSATILE, adaptable, flexible, all-round, multifaceted, multitalented, many-sided.
constant, consistent, limited.