Hello. This is my first time answering questions.. I hope this would help you understand. "아리송하다" is adjective, which means "confusing" , "vague". Here is an example. " 그 문제는 아리송해요" : "That problem is confusing" It means you are just not sure if something is right or you just don't remember something. Also, there is another term "알쏭달쏭하다" , which basically means the same. In my personal view, people tend to use "알쏭달쏭하다" more since it's fun to pronounce. Have a nice day ^-^

아리송하다 : 1. 그런 것 같기도 하고 그렇지 않은 것 같기도 하여 분간하기 어렵다 2. 기억이나 생각 따위가 떠오를 듯하면서도 떠오르지 않다 아리송하다 is an adjective which means "confusing ,ambiguous, vague, equivocal" 아리송해 means "I am confusing".