Is there any way in British English to refer to the people coming from the countryside, who show impolite and odd behaviours?
People coming from the country who have little experience of the joys and sophistication of urban life may be regarded as 'yokels'.
Thanks. And, sure you're right. I personally don't believe in such a thing. But I gave that definition just to show what kind of behaviour I had in mind. Maybe bacause the Cambridge dictionary says, 'a hick...considered to be stupid and without experience'.
Thank you again for the point you have made.
(Country) yokels are unsophisticated, but not necessarily stupid. Country bumpkins are unsophisticated and stupid. Both expresions are used humorously and/or disapprovingly, and are used only when talking about such people, not to them.
It may be somewhat irrelevant, but the OP's question brought to mind the "famous" lines from Dallas (I loved the TV series), which I would like to share with you
Cally: I'm aiming to kick the hayseed out of my voice and shine up my manners.
Miss Ellie: There is nothing wrong with who you are.
hayseed: an unsophisticated person from a rural area; yokel; hick.