| Aspect | Substitute Professor | Adjunct Professor |
|---|
| Credentials | Typically requires a master's degree or higher in the subject area | Usually requires a master's degree; some positions prefer a doctorate |
| Work Environment | Temporary, short-term teaching assignments, often filling in for regular faculty | Part-time, ongoing teaching roles, often with multiple institutions |
| Employer & Industry Usage | Used mainly in academic institutions for short-term coverage | Common in colleges and universities for part-time instruction |
Substitute Professors primarily fill in for regular faculty on a temporary basis, often for short periods. Adjunct Professors typically hold part-time, ongoing teaching positions and may teach multiple courses across institutions. Both roles require similar credentials but differ mainly in duration and employment structure.