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]: unflappalbe, refreshing, funny, cool, confident
[A]: refreshing


[Q]: ashamed, disgusted, emotional upsets, right, down
[A]: right


[Q]: nearest, beside, close, bordering, out of service
[A]:
out of service