The antonyms for "more soft-headed" can include "shrewd," "astute," "sharp," "alert," "intelligent," and "perceptive." These words signify someone who is capable of clear and rational thinking, able to make smart judgments and decisions. On the other hand, "soft-headed" refers to someone who is easily deceived, gullible, or lacks the ability to reason logically. It is essential to understand that choosing words carefully can make a significant difference in conveying the intended message. Using antonyms for "more soft-headed" can help create a more accurate and powerful impression of someone's abilities or qualities, avoiding any confusion or misinterpretation.