showing sustained enthusiastic action with unflagging vitality; an indefatigable advocate of equal rights; a tireless worker; unflagging pursuit of excellence
[ Syn: indefatigable , tireless , unflagging ]
showing sustained enthusiastic action with unflagging vitality; an indefatigable advocate of equal rights; a tireless worker; unflagging pursuit of excellence
[ Syn: indefatigable , tireless , unflagging ]