TIRELESS

adj. energetic, vital, vigorous, dynamic, spirited, lively, indefatigable, hardworking, industrious, untiring, unflagging, unfaltering, unfailing, persistent, dogged, tenacious, pertinacious, persevering, staunch, sedulous, unwavering, unswerving, undeviating, steady, steadfast, resolute, determined We all appreciate the honorary secretary's tireless efforts on behalf of our fund-raising this year