unreason

noun

1. inability or unwillingness to think or act rationally, reasonably, or sensibly; irrationality.
2. lack of reason or sanity; madness; confusion; disorder; chaos: a world torn by unreason.

verb (used with object)

3. to upset or disrupt the reason or sanity of: The devious plot soon unreasoned the general.

noun

1. irrationality or madness
2. something that lacks or is contrary to reason
3. lack of order; chaos

verb

4. (tr) to deprive of reason