The antonyms for the word "more sharp-sighted" would be "less perceptive," "dull-witted," "obtuse," or "unobservant." These words describe individuals who have a difficult time noticing subtle details, reading between the lines, or understanding complex ideas. They may miss important information or fail to recognize patterns, which can lead to poor decision-making and missed opportunities. Unlike their sharp-sighted counterparts, these individuals may struggle with analysis, interpretation, and critical thinking. While some people are naturally more perceptive than others, anyone can improve their sharp-sightedness through intentional observation, practice, and curiosity.