Ignorance; lack of recognition. Also: an instance of this.

Lack of mental or sensory perception, or of comprehension, of what is perceived; the condition or state of not perceiving something.

inability to perceive; lack of perception or perceptiveness.

the quality or condition of being imperceptive.

Failure to perceive; lack of perception.

The state or fact of not having knowledge or awareness of a fact or circumstance; lack of knowledge or awareness. With of.

Inability to perceive something. rare.

Want of knowledge or recognition.

Lack of perception; esp. lack of insight or awareness.

(esp. in Zen philosophy) a mental state in which the mind is not conscious of itself.

= no-mind n.

(esp. in Zen philosophy) the condition achieved when the mind is not conscious of itself.