What is the antonym for seminar?

There isn't a single perfect antonym for "seminar," as the word's meaning can vary slightly depending on context. However, here are some options depending on what aspect you want to contrast:

If focusing on the formal, structured aspect:

* Informal discussion: This emphasizes the lack of formality and structure.

* Casual gathering: This focuses on the relaxed nature of the gathering.

* Independent study: This emphasizes the lack of a structured group setting.

If focusing on the educational aspect:

* Entertainment: This emphasizes the lack of educational value.

* Social event: This focuses on the lack of educational purpose.

* Leisure activity: This emphasizes the lack of academic rigor.

If focusing on the group aspect:

* Solo study: This emphasizes the individual nature of learning.

* Private tutoring: This emphasizes the one-on-one instruction format.

The best antonym for "seminar" will depend on the specific context and what you want to emphasize.