Yes, it is the proper adjective for the Dutch-speaking region called Flanders. It is now part of Belgium.
It is a noun when referring to the language Flemish (aka Belgian Dutch).
In Flemish, "Flemish" is referred to as "Vlaams."
"Red" in Flemish is "rood."
"Three" in Flemish is "drie."
"Neen" is how you say no in Flemish.
Saturday in Flemish is "zaterdag."
Flemish is the adjective of Flanders, the dutch speaking part of Belgium. ( 60% of the Belgians are Flemish )
In Flemish, "Flemish" is referred to as "Vlaams."
"Red" in Flemish is "rood."
"Three" in Flemish is "drie."
"Neen" is how you say no in Flemish.
A Flemish dormer is a type of window.
Saturday in Flemish is "zaterdag."
In Flemish, you say "do" as "doen."
The Flemish word for Mrs. is "mevrouw."
The word for "girl" in Flemish is "meisje".
"Spreekt u Vlaams?"
Bear in Flemish is "beer."