ruinous

Retreat into isolationism—whether under the banner of “America First” or any other slogan—will be ruinous.

Eventually, though, relations settled down as ride-hailing companies stopped pouring money into a ruinous price war and black cabs improved their service by adopting card machines and smoother-running electric vehicles.

The two countries have continued talks to try and strike a deal and avert ruinous tariffs and a trade war.

These floods are ruinous to many families in a country where more than 40% of people live below the poverty line.

The stress, financial cost, reputational damage and years spent on the defensive are ruinous.