har·mo·ni·ous 
/hɑɚˈmoʊnijəs/ adjective
/hɑɚˈmoʊnijəs/ adjective [more harmonious; most harmonious] 1 music : having a pleasing mixture or combination of notes
▪ a harmonious song ▪ harmonious voices 2 : having parts that are related or combined in a pleasing way
▪ The living room was decorated in harmonious colors. ▪ a harmonious combination of flavors 3 : not experiencing disagreement or fighting
▪ a harmonious family ▪ The two countries have maintained a harmonious [=friendly and peaceful] relationship for many years. ▪ harmonious relations
▪ a harmonious song ▪ harmonious voices
▪ The living room was decorated in harmonious colors. ▪ a harmonious combination of flavors
▪ a harmonious family ▪ The two countries have maintained a harmonious [=friendly and peaceful] relationship for many years. ▪ harmonious relations
— har·mo·ni·ous·ly adverb
▪ Their voices blended together harmoniously. ▪ flavors/colors blending with each other harmoniously ▪ people living together harmoniously
▪ Their voices blended together harmoniously. ▪ flavors/colors blending with each other harmoniously ▪ people living together harmoniously
— har·mo·ni·ous·ness noun [noncount]
▪ the harmoniousness of their voices
▪ the harmoniousness of their voices
