0 in a way that happens or is done at a time that is not suitable or convenient: --
There are ten of them on guard yonder, by the way, in case your brother should return inopportunely, though that's scarcely probable.
He must go back and tell her how inopportunely things had turned out, and how sorry he was that he could not keep his promise.
The magic lamp had gone out most inopportunely!
Just at this moment a picturesque, gallant, ambitious, dashing, and rather unscrupulous character appeared inopportunely on the horizon.
He feared to do it awkwardly, inopportunely, and so reopen the wound caused by the death of her husband.
I would not dare tell him things if he spoke of them afterward so inopportunely.
The silver teapot arrived at this juncture, and not inopportunely.
His brain was in a seething turmoil; but overtopping every other emotion was anger at the man who had arrived so inopportunely.
