disbelieve
verb (used with object)
to have no belief in; refuse or reject belief in.
Used to describe an ongoing action or state that is currently taking place in the immediate present.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The sceptical curate is at large, and is disbelieving in everything except the virtues of the young woman who “has a history.”
From How to Fail in Literature; a lecture by Lang, Andrew