Professorates refer to the position, rank and tenure of a professor. Some antonyms for professorates could be non-tenure, adjunct, temporary, or lecturer. A non-tenure track is a position that does not lead to job security, a promotion or a permanent status. An adjunct is a part-time instructor who is not considered a full-time staff member. Temporary refers to a position that has a defined time frame or is only available for a certain period. Finally, a lecturer is a person who teaches at a higher education institution, but may not hold the rank, tenure, or other benefits of a professor. Overall, these antonyms can refer to positions with different ranks, benefits and job security within academia.