The word "more supersensitive" implies an increased sensitivity beyond what is already considered sensitive. Therefore, some antonyms for this phrase would be less sensitive, insensitive, or thick-skinned. These antonyms suggest a lack of sensitivity or a lesser degree of sensitivity than what is expected from the original phrase. Other possible antonyms include tough, unfeeling, and indifferent. These antonyms for "more supersensitive" portray a person who is not easily affected or impacted by their surroundings, emotions, or other people's feelings. They suggest a personality that is not overly emotional or reactive, but rather more stoic or detached.