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

Alternative form of close-minded

The psychological state of someone's cognitive processes at a certain time; the condition or character of a person's thoughts or feelings.

Having a vigorous, independent will and views. / (archaic, of women) Mannish, lacking softness and femininity

Impartial and unbiased.

Dim-witted, stupid, unintelligent

Alternative spelling of mindshare

A mind willing to consider new ideas.

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).