The Dunedain are more of a "term" than a "people". The name is for the Men of Numenor, and their descendants in Gondor and Arnor after the great Downfall in the 2nd age.
I could be wrong about that though.
Hey, am noticing a certain Estrogen-like strain occupying previous threads...about time for certain Brave Hobbits to stand forth as counterpoint testosterone representatives...namely :
Pippin,
Merry
Sam