名詞 outsider:

1. someone who is excluded from or is not a member of a group
   同義詞：foreigner
2. a contestant (human or animal) not considered to have a good chance to win

形容詞 outside:

1. relating to or being on or near the outer side or limit
   同義詞：outside
2. coming from the outside
   同義詞：external, extraneous, outside
3. originating or belonging beyond some bounds:"the outside world"
   同義詞：outside
4. located, suited for, or taking place in the open air
   同義詞：outdoor, out-of-door, outside
5. functioning outside the boundaries or precincts of an organized unit
   同義詞：outside
6. leading to or from the outside
   同義詞：outside
7. from or between other countries
   同義詞：external, international, outside
8. very unlikely
   同義詞：outside, remote
9. on or toward an outer edge
   同義詞：outside
10. (of a baseball pitch) on the far side of home plate from the batter
    同義詞：away, outside

1. Amazingly, the job went to a rank outsider.
   真怪，那工作竟然交給了一個萬萬想不到的人。
2. Women feel like outsiders in that club.
   女子在那個俱樂部里感覺是外人。
3. That horse is a complete outsider; I wouldn't waste your money on it.
   那匹馬絕無獲勝可能，我要是你可不把錢壓在它身上。
4. Although she's lived there for ten years, the villagers still treat her as an outsider.
   她雖然在那兒住了十年，村里人仍視她如外人。

out.sid.er

n.（名詞）

One who is excluded from a party, an association, or a set.
外人：被某黨派、社團或某一群人排除在外的人
One who is isolated or detached from the activities or concerns of one`s own community.
局外人：被隔離于本團體的活動或事務之外的人
A contestant given little chance of winning; a long shot.
獲勝機會很少者：不大可能獲勝的選手；獲勝可能性非常微小地參加者

【引伸】
outsi.derness
n.（名詞）