Sober-minded is a term used to describe someone who is sensible, rational, and level-headed. It can also refer to someone who is serious and restrained in their behavior. The crossword solutions for this term are SANE (4 letters) and STAID (5 letters). SANE is an adjective meaning mentally sound, healthy, and rational. STAID is an adjective meaning serious, sedate, and restrained. Therefore, the crossword solutions for the term sober-minded accurately describe someone who is sensible, rational, and restrained in their behavior.