An opportune double knock at the door, which I knew well from old experience in Windsor Terrace, and which nobody but Mr. Micawber could ever have knocked at that door, resolved any doubt in my mind as to their being my old friends.
You come to give me the benefit of your sober judgement at a most opportune time.
There are no more uses of "opportune" in the book.
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They launched their company at an opportune time.
During the rare, inopportune social moments when I found myself squeezed between black and white, I fled to the black side,