- 1(of relationships, etc.) friendly, peaceful, and without any disagreement a harmonious alliance between management and workers opposite inharmonious
- 2arranged together in a pleasing way so that each part goes well with the others synonym pleasing a harmonious combination of colors opposite inharmonious
- 3(of sounds) very pleasant when played or sung together
harmoniouslyjump to other results
adverb They worked very harmoniously together.