Absent in mind; often preoccupied; forgetful or careless due to distraction; easily distracted.

The absence of mental turmoil or anxiety.

(hortative) It is not important; do not fret; used to reassure or comfort the person to whom it is said. / (hortative) Do not be concerned (about someone or something, or about doing something).

Alternative form of nevermind

A mind willing to consider new ideas.

Willing to consider new and different ideas or opinions.

(transitive, idiomatic) To remember; to consider; to note.

To remember; to be mindful of or pay attention to.

Focused alertness, quick-thinking resourcefulness, stability of thought and feeling, or good sense, especially in spite of circumstances which are distracting, stressful, or otherwise challenging.

That causes the mind to boggle; that is beyond one's ability to understand or figure out.