Collocations for rude - adj.

appear, be, feel, seem, sound
become
consider sth, find sb, think sb/sth
I hope you won't think me rude if I leave early.

extremely, fairly, very, etc.
downright, incredibly, plain, terribly
He wasn't just impolite—he was downright rude.

a little, slightly, etc.

about
He's very rude about her cooking.

to
Don't be so rude to your mother!

Rude is used with these nouns:
awakening, comment, gesture, interruption, manner, noise, remark, shock, sign, word