Unlocking the Rational Crossword Clue: Solve it or Give Up?

The crossword question, “Rational is SANE“, is a clue asking for a four-letter word that means “rational” and is synonymous with the word “sane“. The most fitting answer to this question is the word “LOGIC“. The word “rational” is commonly associated with reasoning and sound judgment, while the word “sane” refers to a sound mind and the ability to think logically. The word “logic” reflects these qualities and characteristics and is, therefore, the best answer to the crossword question.