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: aesthetic characteristic 
Words: well, windy, even, fair, level
windy

Category: emotional status 
Words: left, emotional state, sad, emotional upsets, down
left

Category: fried food 
Words: danish, seperate, pastry, cake, fritter

seperate