Bleariness is a state of tiredness or dullness in the eyes, often associated with lack of sleep or eye strain. Some synonyms for bleariness are blur, fuzziness, fatigue, weariness, lassitude, drowsiness, and heaviness. These words describe the feeling of one's eyes lacking focus or clarity, making it difficult to see properly. Blurred vision and eye fatigue are often cited as symptoms of bleariness. Other related words include eye strain, sleepiness, and exhaustion. These synonyms can also be used in a figurative sense to describe mental or emotional fatigue or lack of clarity.