bulldogged

constant continual endless enduring incessant insistent perpetual relentless repeated resolute steadfast steady stubborn tenacious unrelenting unremitting

assiduous bound bound and determined dogged firm fixed immovable in for long haul indefatigable interminable like bad penny never-ending obdurate obstinate perseverant persevering persisting pertinacious sticky tireless unflagging unshakable

broken ceasing disloyal ending inconstant intermittent interrupted merciful stopping sympathetic temporary terminable unstable unsteady untrustworthy weak yielding

lazy relenting surrendering