If no response from the host or reliable close friends of the host, wear a dark suit.
I recently attended what ought to be a very formal event. The invitation specified semi-formal. Hoping that they meant black tie, but not holding my breath, I asked the organizer if this was the case.
"Oh, no. Well, maybe it used to mean black tie, but now that would be very formal. Semi-formal for this event means khaki pants with a shirt. And maybe a tie."
Ugh. Thankfully, few (if any) others asked her to clarify and most were in black tie and almost all the rest in dark suits.
pbc
I recently attended what ought to be a very formal event. The invitation specified semi-formal. Hoping that they meant black tie, but not holding my breath, I asked the organizer if this was the case.
"Oh, no. Well, maybe it used to mean black tie, but now that would be very formal. Semi-formal for this event means khaki pants with a shirt. And maybe a tie."
Ugh. Thankfully, few (if any) others asked her to clarify and most were in black tie and almost all the rest in dark suits.
pbc