Synonyms for Industrious (same or very similar meaning)
WordNet sense 1 (working hard to promote an enterprise):
energetic, up-and-coming, gumptiousWordNet sense 2 (characterized by hard work and perseverance):
hardworking, tireless, untiringWordNet sense 3 (characterized by care and perseverance in carrying out tasks):
diligentFrom the ODE community, based on WordNetadd/edit