Pronunciation: (sem"ē-pru-fesh'u-nl, sem"ī-),[key] —adj. 1. actively engaged in some field or sport for pay but on a part-time basis: semiprofessional baseball players. 2. engaged in by paid, part-time people: semiprofessional football. 3. having some features of professional work but requiring less knowledge, skill, and judgment: a semiprofessional job.
—n. a person who is active in some field or sport for pay on a part-time basis.