Synonyms for harmonious

modified

1. Harmonic

   melodious, tuneful, musical, rhythmical, dulcet, sweet-sounding, melodic, symphonic, sonorous, in tune, in chorus, silvery, in unison, tuny*, earful*.

   Antonyms shrill*, jangling, dissonant.

2. Congruous

   agreeable to, accordant, concordant, consonant, corresponding, suitable, adapted, similar, like, peaceful, in accord, amicable, cooperative, congenial, on borrowing terms, in step, in accordance with, in concord with, in favor with, in harmony with, on a footing with, friendly, of one accord, in concert, conforming, well-matched, evenly balanced, symmetrical, congruent; see also fit 1, 2.

   Antonyms incongruous, incompatible, opposed*.