The phrase "fore armed" means to be prepared in advance for something. The opposite of being forearmed would be to be caught off-guard or unprepared for a situation. Some antonyms for forearmed could be unprepared, surprise, caught off-guard, unarmed, or ignorant. Being forearmed often involves having knowledge, resources, or tools that can assist in facing a certain challenge. Therefore, antonyms for forearmed could represent a lack of readiness or ability to handle a situation. Being forearmed is essential in many aspects of life, whether it's preparing for exams, attending an important meeting, or facing an emergency.