be in (one's) Sunday best
be in (one's) Sunday best
To be wearing one's very best clothes, as one would wear to a Sunday church service. We're all in our Sunday best already, so why don't we go for lunch at a fancy restaurant? This is going to be a formal event, so we all need to be in our Sunday best.
See also: Sunday
Farlex Dictionary of Idioms.
- in (one's) Sunday best
- in Sunday best
- Sunday best
- your Sunday best
- (one's) Sunday best
- get into (one's) Sunday best
- (had) best (do something)
- best do
- as best (one) can
- as best you can