1. [ adjective ] (music) musically pleasing
Related terms: inharmonious consonant consonant pure on-key on-key symphonic harmonic compatible
2. [ adjective ] exhibiting equivalence or correspondence among constituents of an entity or between different entities
Synonyms: symmetrical proportionate
Related terms: balanced
3. [ adjective ] suitable and fitting
Synonyms: appropriate

"the tailored clothes were harmonious with her military bearing"

Related terms: congruous
4. [ adjective ] existing together in harmony

"harmonious family relationships"

Related terms: compatible
Similar spelling:   harmoniously