noncasual
adjective
non·ca·su·al ˌnän-ˈkazh-wəl 
-ˈka-zhə-wəl,
-ˈka-zhəl
: not casual
noncasual communication
a noncasual relationship
Word History
First Known Use
1834, in the meaning defined above
noncasual
adjective
as in best
Synonyms & Similar Words
Relevance
- best
- dressed up
- formal
- dressy
- stylish
- elegant
- fashionable
- chic
- neat
- Sunday
- smart
- semiformal
- trim
- tidy
Antonyms & Near Antonyms
- informal
- casual
- everyday
- workaday
- relaxed
- sporty
- dressed down
- dégagé