Dumbfoundments, meaning feelings of confusion or perplexity, can be expressed in a number of antonyms. These include clarity, understanding, comprehension, discernment, and lucidity. When one is not dumbfounded, they possess a clear sense of knowledge, are able to make sense of complex situations, possess an acute sense of perception, and have a strong sense of focus. Other antonyms may include aptitude, awareness, intellect, enlightenment, and astuteness. Overall, the opposite of dumbfoundments are qualities of intelligence, acuity, and perception which enable one to grasp and make sense of the world around them.