If we have to tell someone that their belt is unfastened (a person did that before but now it's come undone)

Your belt's open/untied/undone.

What would sound natural?

No my belt is tied/closed/fastened. (If a person doesn't realize it and feels that his/her belt isn't untied)

The belt can be either be a buckle one or the one that has a hook and is elastic (what girls wear with skirts).

  • "Open" or "Undone." "Untied" would only work if the belt was a tied together piece of rope or something.
    – Showsni
    Jul 2 '19 at 14:14
  • "Unfastened" or "undone". Not "open". "Untied" only if it is a fabric sash, or some kind of "rope" type belt that you would literally tie (with a knot or a bow) around your waist.
    – Lorel C.
    Jul 2 '19 at 14:16
  • What's wrong with using unfastened as you have said in your opening line? "Your belt has become unfastened"
    – Gamora
    Jul 2 '19 at 14:34
  • I wouldn't be surprised to hear any of the given words for any type of belt. In my experience, when you start with "your belt..." 99% of people will immediately look to see if it's undone, and the following word hardly matters. Jul 2 '19 at 14:35
  • "Not on properly" would also work if you are unsure of the 3 options you provided.
    – jmrpink
    Jul 2 '19 at 14:35

I think "undone" sounds most natural. I've said that and I've heard people say it. I've never heard anyone say "open" or "unfastened."

I've also jokingly said after realizing my belt was undone, "should probably do up my belt."

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .