outsider

outsider is a   Noun

Definition:

[1] One not belonging to the concern, institution, party, etc., spoken of; one disconnected in interest or feeling. [Recent] A. Trollope.

[2] A locksmith`s pinchers for grasping the point of a key in the keyhole, to open a door from the outside when the key is inside.

[3] A horse which is not a favorite in the betting. [Cant]

Synonyms: