Defenses refer to measures taken to prevent harm or danger from external threats. Antonyms for defenses can include terms such as vulnerability, exposure, susceptibility, and defenselessness. These words describe a state of being unable to protect oneself from harms both tangible and emotional. While defenses can refer to physical barriers such as walls and security systems, their antonyms can point to a state of insecurity and lack of protection. Being vulnerable and defenseless can be challenging, and it is essential to recognize when such situations occur and seek help, advice, or support when necessary to avoid harm.