The antonyms for the phrase "with one strength" can be numerous, as it depends on the context of the phrase. If the phrase means that someone has only one area of expertise, the antonyms could be "well-rounded," "versatile," or "multifaceted." If the phrase means that someone is using limited resources, the antonyms could be "well-funded," "abundant," or "plentiful." If the phrase refers to someone who is physically strong, the antonyms could be "weak," "frail," or "fragile." Whatever the context, it is clear that "with one strength" does not always represent the most beneficial situation, and there are many antonyms to convey a different perspective.