The term "bulletheaded" is a derogatory expression used to describe someone who is stubborn, unyielding, and inflexible. There are plenty of synonyms for this word, including pig-headed, hardheaded, obstinate, rigid, unrelenting, and unwavering. These adjectives are all used to characterize individuals who refuse to change their opinions or beliefs, even in the face of overwhelming evidence to the contrary. Whether it's a sign of confidence or arrogance, being bulletheaded can be detrimental to personal relationships and professional success. It's important to remain open-minded, listen to others, and consider different perspectives before arriving at a final decision.