unscheduled date

Definitions

A social or professional meeting that has not been arranged or set in advance.

A calendar entry or appointment that occurs outside of a pre-planned or fixed schedule.

Examples

The manager was surprised by the unscheduled date of the audit, which caught the entire team off guard.

We had to rearrange our entire project timeline to accommodate the unscheduled date of the client's site visit.

Synonyms

spontaneous meeting impromptu appointment unplanned encounter ad hoc session surprise rendezvous

Antonyms

prearranged appointment scheduled meeting planned encounter booked session calendar event