Need help with Question Session 1 homework

Day 2-Session 2 (verbal lesson) first session homework question 2

In this question, should not “impossibly rude” mean rude and it should have a negative connotation, but in the video it is given a positive connotation i do not why.

Thank you,

Don’t think of negative or positive as bad or good, just opposites
I TC we don’t necessarily care if the negative word is a bad word, we care about the fact that is the blank going to be an antonym of the word or a synonym of the word.
In this question, the blank we will have the antonym of rude
If rude is positive, then blank will be negative
If rude is negative, then blank will be positive