(CNN) -

(CNN) -- How many ways are there to disbelieve in God?

At least six, according to a new study.


"The main observation is that nonbelief is an ontologically diverse community," doctoral students Christopher Silver and and Thomas Coleman wrote.



1) Intellectual atheist/agnostic

This type of nonbeliever seeks information and intellectual stimulation about atheism.

They like debating and arguing, particularly on popular Internet sites.



2) Activist



3) Seeker-agnostic


Silver and Coleman describe this group as people who regularly question their own beliefs and "do not hold a firm ideological position."


4) Anti-theist

This group regularly speaks out against religion and religious beliefs, usually by positioning themselves as "diametrically opposed to religious ideology," Silver and Coleman wrote.

"Anti-theists view religion as ignorance and see any individual or institution associated with it as backward and socially detrimental," the researchers wrote. "The Anti-Theist has a clear and -- in their view, superior -- understanding of the limitations and danger of religions."

Anti-theists are outspoken, devoted and -- at times -- confrontational about their disbelief. They believe that "obvious fallacies in religion and belief should be aggressively addressed in some form or another."

5) Non-theist


In many cases, this comes across as apathy or disinterest.