| 1. | not professional; not pertaining to or characteristic of a profession. |
| 2. | at variance with or contrary to professional standards or ethics; not befitting members of a profession, as language, behavior, or conduct. |
| 3. | not belonging to a profession; nonprofessional. |
| 4. | not done with professional competence, as a play staged or an opera performed by amateurs; amateurish. |
| 5. | Sports. nonprofessional (def. 2). |
| 6. | a person who is not a professional; amateur. |