"Soft head" is a derogatory term used to describe someone who is weak-minded, easily manipulated, or lacks common sense. There are many synonyms for this phrase, including "fool," "idiot," "dunderhead," "simpleton," "nitwit," "nincompoop," and "dolt." Other terms that can be used to describe someone with a "soft head" include "gullible," "naive," "credulous," and "innocent." It's important to remember that using derogatory language to describe others can be hurtful and disrespectful, and it's always best to choose your words carefully. Instead of focusing on negative traits, try to highlight the positive qualities that make each person unique and valuable.