persistent Antonyms

caducous reflexive uncertain unstable vacillating variable vibratory vicissitudinary volatile wavering yielding unsteady transmigratory transitive rescindable retroactive rootless sluggish sporadic sporadical temporally temporary terminable terminative unassertive at a loss always changing always evolving changing all the time constantly changing constantly developing constantly evolving continually developing continually evolving continuously changing continuously developing unenthusiastic unpredictable prelim backmost end game work-shy cagy stopgap freewheeling migrational off and on playoff continuously evolving quicksilver