What does it mean if something is considered "inopportune"?

When something is described as "inopportune," it indicates that the timing or circumstances surrounding it are not suitable or advantageous. Specifically, the term suggests that an event or situation occurs at an unfortunate moment, making it ill-timed and often inappropriate for the context in which it arises. This can lead to discomfort or a lack of effectiveness, as the timing does not align with what is ideal or expected.

The other choices do not align with the meaning of "inopportune." For instance, calling something timely and appropriate suggests that it occurs at a perfect moment, which contradicts the idea of being ill-timed. Similarly, beneficial and favorable indicates a positive circumstance, while unexpected but welcome implies that the occurrence is surprising but still desirable, which does not capture the essence of being inopportune.