expression, i-adjective
out of hand; uncontrollable; out of control
Describes a situation that has become impossible to manage or bring under control. Often used for chaos, disorder, or escalating problems.
会議は収拾がつかない状態になった。
The meeting got out of hand.
彼の行動はもう収拾がつかない。
His behavior is already uncontrollable.
From 収拾 (control, management) + が + つかない (cannot be attached/achieved). The phrase literally means 'control cannot be attached', i.e., the situation cannot be brought under control.