Minor

1. Of little significance or importance. His physical appearance was a minor factor in his recruitment.
2. Lesser in importance, rank or stature. He was a minor politician.
3. Lesser in seriousness or danger. It was just a minor injury.
4. Being under legal age; not yet a legal adult. She was a minor in possession of alcohol.
5. Of or relating to a secondary area of academic specialization. She had a minor in chemistry.
6. (music) Less in distance by a half step than the corresponding major interval. It was in a minor key.
7. (sports) Sport teams in lower level ability of ability. He played for a minor league team.