drops in
Comes by unannounced
Drops in describes a brief, informal visit without much advance planning: She drops in on her grandmother every Sunday, Feel free to drop in whenever you're in the neighborhood.
The phrase suggests casualness—you're passing through rather than making a formal appointment.
Someone who drops in stays only a short while.
The noun drop-in describes such a visit or a place welcoming unscheduled visitors: a drop-in clinic.
Impromptu brief visit
- stopoverBrief halt mid-journey
- unannouncedWithout prior notice
- guestWelcomed visitor
- visitorShort-term guest
caller · neighbor · spontaneous · impromptu · unplanned · housecall · catch-up · chat
Not anticipated beforehand
- unannouncedWithout prior notice
- startleFrighten suddenly
- abruptSharp and unexpected
- unforeseenNot predicted or expected
interruption · intrusion · disruption · sudden · jarring · without warning · unanticipated
pop-in
Impromptu brief visit
- stopoverBrief halt mid-journey
- unannouncedWithout prior notice
- guestWelcomed visitor
visitor · caller · neighbor · spontaneous · impromptu · unplanned · housecall · catch-up · chat · socialize
unexpected
Not anticipated beforehand
- unannouncedWithout prior notice
- startleFrighten suddenly
- abruptSharp and unexpected
unforeseen · interruption · intrusion · disruption · sudden · jarring · without warning · unanticipated