The phrase "saw the mind's eye" refers to visualizing or imagining something in one's mind. Its antonyms would be related to the opposite of imagination, such as reality, certainty, and fact. Other antonyms could include the words unimaginative, uninspired, and uncreative, which all relate to a lack of imaginative thinking or innovation. Additionally, "forgetting," "ignorance," and "distraction" could also be considered antonyms, as these concepts all involve a lack of focus or attention on something in the mind's eye. Overall, the antonyms for "saw the mind's eye" can be seen as concepts that hinder or prevent imaginative thinking, visualization, and creativity.