The knowledge that is acquired without inference or the use of reason is called

Knowledge acquired without inference or the use of reason is called intuitive knowledge, grasped directly and immediately.

In intuitive knowing the truth is apprehended at once, without a chain of argument or evidence.

Demonstrative knowledge is reached through proof and reasoning step by step, which is the opposite of intuition.

Logical knowledge rests on inference from premises to conclusion, again requiring the use of reason.

Experiential knowledge comes through the senses and lived experience, not through a reason-free direct insight.

John Locke classified knowledge into intuitive, demonstrative and sensitive, with intuitive being the most certain.