A formal wedding.
A formal requirement that is usually ignored.
Had little formal education; went to a formal party.
A formal garden.
An example of formal is a dinner party at a mansion where everyone dresses up in fancy clothes and is very polite.
An example of formal is when a judge gives official approval of something.
Formal series are defined without any reference to convergence.
Jenny took Sam to her Year 12 formal.
A formal contract.
- to go dressed in evening clothes