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: outdoor sport activity 
Words: hiking, climbing, mice, fish, row

Answer: mice


Question: Category: emotional status 
Words: kind, down, sad, backward, emotionalities

Answer: backward


Question: Category: emotional status 
Words: inlays, fret, frustrated, emotionalities, emotional

Answer:
inlays