Synonyms for Indolent (same or very similar meaning)
WordNet sense 1 (disinclined to work or exertion):
faineant, lazy, otiose, slothful, work-shyWordNet sense 2 (not in action or at work):
idleWordNet sense 3 (not progressing or increasing; or progressing slowly):
inactiveFrom the ODE community, based on WordNetadd/edit