har ‧ mo ‧ ni ‧ ous /hɑːˈməʊniəs $ hɑːrˈmoʊ-/ BrE AmE adjective
1 . harmonious relationships are ones in which people are friendly and helpful to one another
2 . sounds that are harmonious are very pleasant
3 . parts, colours etc that are harmonious look good or work well together:
The decor is a harmonious blend of traditional and modern.
—harmoniously adverb