Which antonym fits the adjective 'sage'?

The term 'sage' refers to someone who is wise, knowledgeable, and exhibits sound judgment, often gathered through experience. An antonym represents a word that has the opposite meaning to another word. In this context, 'foolish' is an appropriate antonym for 'sage' because it describes someone lacking wisdom or making unwise decisions, which is fundamentally contrary to the qualities associated with being sage.

Understanding the meaning of 'sage' helps to clarify that it embodies traits of wisdom and discernment, making 'foolish' an effective counterpoint. The other choices, such as 'wise,' 'reasonable,' and 'sensible,' all align with the qualities of a sage, reinforcing why they do not serve as antonyms for the word in question.