outsider vs contestant

outsider and contestant both are nouns.

Word	Noun	Adjective	Verb	Adverb
outsider	Yes	No	No	No
contestant	Yes	No	No	No

As nouns, contestant is a hypernym of outsider; that is, contestant is a word with a broader meaning than outsider:

outsider: a contestant (human or animal) not considered to have a good chance to win
contestant: a person who participates in competitions

outsider (noun)	contestant (noun)
someone who is excluded from or is not a member of a group	a person who participates in competitions
a contestant (human or animal) not considered to have a good chance to win	a person who dissents from some established policy