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.
--------
Question: Category: emotional status 
Words: fret, truss rod, emotional upsets, sad, worried

Answer: truss rod


Question: Category: direction 
Words: up, down, sliding, shameful, right

Answer: shameful


Question: Category: social gathering 
Words: convention, place, cinema, dagwood, club

Answer:
dagwood