| 1. | a person not belonging to a particular group, set, party, etc.: Society often regards the artist as an outsider. |
| 2. | a person unconnected or unacquainted with the matter in question: Not being a parent, I was regarded as an outsider. |
| 3. | a racehorse, sports team, or other competitor not considered likely to win or succeed. |
| 4. | a person or thing not within an enclosure, boundary, etc. |