To be militant means to be aggressive, combative, or confrontational. This term can be used to describe individuals or groups that are not afraid to voice their opinions or take aggressive action to achieve their goals. Some synonyms for being militant include being assertive, belligerent, pugnacious, or bellicose. These words all convey a sense of readiness for conflict or opposition. Other synonyms for being militant include being radical, extremist, or fanatical. These words indicate a strong and passionate commitment to a particular cause or ideology. Ultimately, being militant involves being willing and able to stand up for one's beliefs, even in the face of resistance or opposition.