rude
/ˈrüd/
adjective
being in a rough or unfinished state : crude
natural, raw
primitive, undeveloped
rude cotton
noun
surprising and unpleasant discovery that one is mistaken
He thinks he can get by without doing any work, but he is in for a rude awakening.
noun
an unpleasant surprise
If you think this job is going to be easy, you're {phrase}in for a rude shock{/phrase}.