The term "headons" refers to something that is direct, confrontational or aggressive. Synonyms for this word include words like face-to-face, frontal, head-to-head, face-off, eyeball-to-eyeball, nose-to-nose, toe-to-toe and confrontational. These words are often used in sports, politics and business environments where opposing parties come together to challenge each other. They are also used in everyday language to describe situations where people take a confrontational approach to problem-solving. Other related terms might include words like combative, confrontational, aggressive, and challenging. By using these synonyms, you can more accurately convey the meaning and tone of the phrase "headons" in your writing or speech.