WordReference Random House Unabridged Dictionary of American English © 2026
sem•i•pro•fes•sion•al
(sem′ē prə fesh′ə nl, sem′ī-),USA pronunciation adj.
n.
sem′i•pro•fes′sion•al•ly, adv.
- actively engaged in some field or sport for pay but on a part-time basis:semiprofessional baseball players.
- engaged in by paid, part-time people:semiprofessional football.
- 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.
- semi- + professional 1895–1900