jednostronny Anglais:

unilateral decision

a unilateral action or decision is done by only one of the groups involved in a situation

Ryan-Mark made a unilateral decision to call the ride Insomnia. I mean, even the rest of the team immediately said that was absolutely at odds with what they were trying to do.

the employer’s unilateral decision to create, for all intents and purposes, an on-site collection box for N.L.R.B. ballots destroyed the laboratory conditions

Maintenance obligations are personal and continuous, not to mention unilateral.

The party leader has actually declared her support for unilateral nuclear disarmament (= giving up her country's nuclear weapons without first waiting for other countries to do the same).

They were forced to take unilateral action

I'm not on my own, so blooming unilateral decusuins are out of the question.