Definition

Not planned or arranged in advance; happening without a set time.

Example

The meeting was unscheduled, so many people were caught off guard.

Conversation

Did you hear about the unscheduled meeting this afternoon?

No, I didn't! What’s it about?

I think they want to discuss some important updates.

Got it! I hope it doesn’t take too long.

Synonyms & Antonyms

Root Explanation

Unschedule → It is formed from "un-" (meaning not) and "schedule" (from Old French *escheduel*, meaning a list or plan). The word "unscheduled" means not planned or not listed in a schedule.

Memory Tip

Think of 'not' ('un-') having a 'plan' ('schedule') — that's why unscheduled means something that is not planned.

Visually Confused Words