Princeton's WordNet

1. foreigner, outsider(noun)

   someone who is excluded from or is not a member of a group

2. outsider(noun)

   a contestant (human or animal) not considered to have a good chance to win

Kernerman English Learner's Dictionary

1. outsider(noun)ˌaʊtˈsaɪ dər

   sb who is not accepted by a group

   She was always an outsider at school.

2. outsiderˌaʊtˈsaɪ dər

   ≠ insider

   Democratic party outsiders

Wiktionary

1. outsider(Noun)

   One who is not part of a community or organization.

   While the initiated easily understand the symbols, they are wholly inaccessible to outsiders.

2. outsider(Noun)

   A newcomer with little or no experience in an organization or community.

   Seeing the mess professional politicians have made of things is it any wonder the electorate is beginning to prefer outsiders.

3. outsider(Noun)

   A competitor or contestant who has little chance of winning; a long shot; a dark horse

   Johnny was an outsider at this years karate tournament, but he still managed to win second place out of sheer determination.

• buitestanderAfrikaans
• شَخْص خارِج المَجْموعَه، مَنْبوذArabic
• външно лицеBulgarian
• intrusoPortuguese (BR)
• nezasvěcený člověkCzech
• der/die Außenseiter(in)German
• outsiderDanish
• αυτός που δεν ανήκει σε ένα σύνολο, ο ξένος, ο τρίτοςGreek
• extraño, forastero, desconocido, intrusoSpanish
• kõrvalseisjaEstonian
• آدم غریبه؛ خارجیFarsi
• ulkopuolinenFinnish
• étranger/-èreFrench
• זָרHebrew
• पराया, बाहरी आदमी, गैर आदमीHindi
• nečlanCroatian
• nem bennfentesHungarian
• orang luarIndonesian
• utanaðkomandiIcelandic
• estraneoItalian
• 部外者Japanese
• 문외한, 외부 사람Korean
• pašalietisLithuanian
• nepiederošsLatvian
• orang luarMalay
• buitenstaanderDutch
• utenforstående, outsiderNorwegian
• outsiderPolish
• آدم غریبه؛ خارجیPersian
• بهرنى كسPashto
• intrusoPortuguese
• străinRomanian
• посторонний человекRussian
• nezasvätený / cudzí človekSlovak
• tujec, outsiderSlovenian
• autsajderSerbian
• outsider, utomstående, särlingSwedish
• บุคคลภายนอกThai
• yabancıTurkish
• 局外人，非會員Chinese (Trad.)
• стороннійUkrainian
• خارجي، باہر کاUrdu
• người ngoài cuộcVietnamese
• 局外人，圈外人，非会员Chinese (Simp.)