1. Adapted to each other; having parts proportioned to each other; symmetrical.
God hath made the intellectual world harmonious and beautiful without us. --Locke.
2. Acting together to a common end; agreeing in action or feeling; living in peace and friendship; as, an harmonious family.
3. Vocally or musically concordant; agreeably consonant; symphonious.
-- Har*mo*ni*ous*ly, adv. -- Har*mo*ni*ous*ness, n.
n 1: the property of sounding harmonious [syn: consonance]
2: compatibility in opinion and action [syn: harmony]