1. marked by agreement in feeling, attitude, or action: a harmonious group.
2. forming a pleasingly consistent whole; congruous: harmonious colors.
3. pleasant to the ear; tuneful; melodious.
"voices can be harmonious in/at/on dates."
"periods can be harmonious on policies."
"movements can be harmonious in designs."
"relationships can be harmonious."
"relations can be harmonious."
This list can help you learn new vocabulary more quickly and be able explore other words more easily.