Außenseiter

Noun

 * 1) outsider who is not part of a particular group
 * 2) loner, outsider who is socially awkward
 * 3) outcast, leper, castaway, pariah one that has been excluded from a society or system, a pariah
 * 4)  outsider, underdog, contender who has little chance of winning
 * 1)  outsider, underdog, contender who has little chance of winning

Usage notes

 * In sports contexts, English “outsider” is sometimes used to mean a contestant who is not among the general favourites but is given a good chance of winning by some of the experts. German Außenseiter is not used in this sense; the correct word would be.