expression, i-adjective
unstoppable; can't be stopped
Used for negative things that cannot be brought under control, such as rising costs, a worsening situation, or an uncontrollable impulse. The phrase literally means 'the brake doesn't engage'.
物価の上昇に歯止めがかからない。
The rise in prices is unstoppable.
彼の浪費癖には歯止めがかからない。
His spending habit can't be stopped.