Pottiest is an adjective that means extremely foolish or crazy. The antonyms for this word would be sensible, logical, reasonable, intelligent, and sane. Sensible refers to the quality or nature of being practical, logical, and based on reason. Logical suggests a situation or argument that is coherent, consistent, and follows a certain pattern. Reasonable refers to having good judgment or being rational. Intelligent is the opposite of foolish or stupid, and suggests having mental acuity or ability. Sane refers to being mentally sound, stable or rational. All of these words can be considered antonyms for "pottiest," as they convey the opposite meaning of that word.