harmonious cooperation

noun phrase
UK /hɑːˈməʊniəs kəʊˌɒpəˈreɪʃn/
US /hɑːrˈmoʊniəs koʊˌɑːpəˈreɪʃn/

Working together in a peaceful and friendly way.

The two teams showed harmonious cooperation to finish the project on time.


OTHER MEANINGS

2. A smooth and well-organized joint effort where everyone gets along.

The festival was a success thanks to the harmonious cooperation of all the volunteers.

3. A state in which different groups work together without conflict.

The treaty promoted harmonious cooperation between the neighboring countries.

4. Working side by side in a way that feels calm and balanced.

Their harmonious cooperation made the choir sound beautiful.