Harmonious

(a.) Adapted to each other; having parts proportioned to each other; symmetrical.

Harmonious - Other Definitions

(a.) Adapted to each other; having parts proportioned to each other; symmetrical.
(a.) Acting together to a common end; agreeing in action or feeling; living in peace and friendship; as, an harmonious family.
(a.) Vocally or musically concordant; agreeably consonant; symphonious.