The word "un-armed" typically means lacking weapons or not carrying any arms, and therefore antonyms for this word would refer to the opposite meaning. Some possible antonyms for "un-armed" could include terms such as "armed," "equipped," "loaded," "protected," or "defended." These words convey the idea of having a weapon or means of defense, making them useful in various scenarios such as describing military operations, police work or self-defense measures. In contrast to "un-armed," these antonyms provide a sense of preparedness and security that can boost confidence and deter any potential threats or dangers.