Lazy [from the German for "slack"] has largely replaced the native English terms "slack" and "idle" as the main word for expressing the concept "averse to work"... but of course the slacker and the idler are averse to work for wholly different reasons. The indolence of the dawdling idler makes him seem lazy, it's true... but we must distinguish, with Aristotle, between laziness (aergia) on the one hand, and abstention-from-worldly-activities-in-order-that-one-may-be-more-meditative (skhole), on the other. The lazybones suffers from a deficiency in will, and spirit; not so the idler. See: LANGUID, SLUGGISH, TIRED, TORPOR.