outsider outsider /aʊtˈsaɪdɝ/

noun

1. () Someone who is excluded from or is not a member of a group  ( foreigner , outsider )
   someone who is excluded from or is not a member of a group
   
2. A contestant (human or animal) not considered to have a good chance to win  ( outsider )
   a contestant (human or animal) not considered to have a good chance to win