Definition of "inopportune"

"It appears I come at an inopportune time, madam," said he, "when my friend, Mr. Rochester, is from home; but I arrive from a very long journey, and I think I may presume so far on old and intimate acquaintance as to install myself here till he returns."

1847, Charlotte Brontë, chapter XVIII, in Jane Eyre

The object is to keep the yard operators apprised of main-line movements, so that they do not plan to occupy the main lines with activity into or out of the yard at an inopportune juncture.

1962 October, G. Freeman Allen, “The New Look in Scotland's Northern Division—II”, in Modern Railways, page 170