Unilateral

Tom's boss made a unilateral decision to close several small branches of the company.

The Coronavirus is a global crisis, not limited to any continent and it requires cooperation rather than unilateral action.

I believe that "unilateral" relationships do not exist.

“Such unilateral actions, as that of today, are detrimental to the spirit of cooperation between the two countries in the fight against terrorism,” the ministry noted.

The West often promotes unilateral actions and disregards the perspectives and interests of other countries, undermining the principles of a multipolar world.

For purposes of evaluating monopsony cases from the standpoint of economic efficiency, it makes sense to adopt a "purpose"-oriented classification system. After all, all monopsony cases can be reduced to either a unilateral or collusive use of buying power in order to promote the interests of the buyer.