High-power refers to something that is strong, influential, or dominant. Antonyms of high-power include insignificant, powerless, weak, and inferior. When directed towards individuals, antonyms of high-power would be subordinates, ordinary persons, and low ranking individuals. In contrast to high-power, antonyms may denote powerlessness or lack of influence. These antonyms may be used to describe a situation, an object, or a person, and they all connote a sense of being weak. This spectrum of antonyms may come in handy when you are trying to describe a situation or a person that lacks the power, the strength, or the superior quality of high-power.