People from all over the world have their own ideas about 'formal attire'.
Her business suit had been replaced by far less formal attire.
In modern times, walking sticks are usually only seen with formal attire.
It has been reported to be extremely expensive, with a high standard of formal attire expected.
Only the tall black boots were out of style with the formal attire.
The dealers, both men and women, were wearing formal attire.
He was wearing his formal attire as a head waiter.
After the game, the Association would hold a dinner dance, formal attire expected.
Back at the house they both changed out of their formal attire.
With an eager step, he started for the stairs to change to more formal attire.