formal

1 formal /ˈfoɚməl/ adjective
1 formal
/ˈfoɚməl/
adjective
Britannica Dictionary definition of FORMAL
1 
[more formal; most formal] : requiring or using serious and proper clothes and manners
also : suitable for a formal occasion — opposite informal
2 
[more formal; most formal] of language : suitable for serious or official speech and writing — opposite informal
3 
a  : made or done in an official and usually public way
b  : done in a proper way according to the law
4 
: arranged in a very orderly and regular way — opposite informal
5 
[more formal; most formal] : showing great concern for behaving in a proper and serious way
6 
: received in a school
7 
: relating to the form of something (such as a piece of writing) rather than the content

— formally

adverb
2 formal /ˈfoɚməl/ noun
plural formals
2 formal
/ˈfoɚməl/
noun
plural formals
Britannica Dictionary definition of FORMAL
[count] US
: a social gathering (such as a dance) that requires formal dress and manners : a formal event