inopportun

inopportune, ill-timed, inconvenient

i . n ɔ . p ɔ ʁ . t œ̃
in not; lacking in + opportun right, suitable, convenient
adjective · singular Rare #51,532
inopportune, ill-timed, inconvenient Somewhat formal; everyday French often uses « mal choisi » or « mal tombé ».
FR: Désolé de vous appeler à un moment inopportun.
EN: Sorry to call you at an inconvenient time.

La maladie survient souvent à un moment très inopportun.

The disease often occurs at a very inopportune time.

Il est arrivé à un moment inopportun.

It came at an inopportune time.

Ce serait inopportun.

That would be inappropriate.

— Star Trek: The Next Generation - All Good Things... (2014)

Si ce n'est pas inopportun.

If it isn't inconvenient.

— Toni Erdmann (2016)