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

Q: miserable, ground, up, opposite of up, down

A: miserable
****
Q: unyielding, concerted, firm, combined, united

A: unyielding
****
Q: fair, unjust, medium, equitable, alright

A:
medium
****