When describing something as "most bordered", there are several synonyms that can be used to convey a similar meaning. The word "begirt" describes something that is surrounded or enclosed by something else. "Encircled" refers to something that is completely surrounded or encased. "Enveloped" means to be completely covered or wrapped up in something, typically a physical material. Alternatively, "beset" could be used to describe something that is surrounded by a particular difficulty or danger. Lastly, "ringed" is another option that describes something that is circularly enclosed, like a ring around a finger. Any of these synonyms can be used to replace the phrase "most bordered" to enhance variety and clarity in your writing.