Given a category and a set of five words, find the word from the set that does not belong (i.e. is the least relevant) with the other words in the category. Words are separated by commas.

Category: weather 
Words: honorable, fair, stormy, sunny, endure
honorable

Category: police punishment 
Words: suspension, arrest, classy, custody, fine
classy

Category: personal characteristic 
Words: unflappalbe, refreshing, funny, cool, confident

refreshing