ajar

Slightly turned or opened.

The door was standing ajar.

Slightly turned or opened.

The door is ajar.

I know—for Death, who comes for me From regions of the blest afar, Where there is nothing to deceive, Hath left his iron gate ajar, […]

To turn or open slightly; to become ajar or to cause to become ajar; to be or to hang ajar.

A plainclothes detective knocked on a slightly ajarred door.

Yes, and the door also lops off stairs leading to a landing on whose landing is another door on whose hinges much of this story ajars, if it hasn't jarred too much already.