When you want to express something as being really impressive or unusual, the phrase "one damndest" can be an effective way to do it. However, if you are looking for synonyms that convey the same tone and mood, consider these options: "astonishing," "phenomenal," "mind-blowing," "exemplary," "unbelievable," "remarkable," and "extraordinary." These words give you different options to choose from depending on the context and message you want to convey. Whether you're describing a stunning view, a great piece of art, or a remarkable athletic accomplishment, these synonyms can help you express your thoughts in a more concise but powerful way.