out of bounds

Prepositional phrase

idiomatic

(idiomatic) That which one is prohibited from entering. / (idiomatic) Beyond the bounds of civility or morality; extremely unreasonable.

Japanese Meaning

進入禁止区域や立ち入り禁止の区域を示す / 常識や道徳の範囲を逸脱しており、極めて不合理な状態を指す

The abandoned factory is out of bounds to everyone after last night's accident.

昨夜の事故の後、その廃工場は全員に立ち入り禁止になった。

Sense（1）

(idiomatic) That which one is prohibited from entering.

You can play wherever you want, but remember that the cemetery is out of bounds.

Sense（2）

(idiomatic) Beyond the bounds of civility or morality; extremely unreasonable.

You were out of bounds to call him a criminal.

Sense（3）

Outside the area of play; beyond the sideline of a playing field or court.

The ball went out of bounds.