The term "out flanked" means to be surrounded or surpassed. Antonyms for this word can include "protected", "guarded", "fenced" or "sheltered". These words suggest safety, security and a strong defensive position. Other antonyms for "out flanked" might include "outmaneuvered", "outsmarted" or "outwitted", which imply being caught off guard or being outmatched mentally. All these antonyms carry different connotations and suggest different scenarios, but they all highlight the importance of being prepared and staying one step ahead. The opposite of being "out flanked" is to be in control, secure, and well defended.