1. Superlative form of lucid; most clear, easy to understand, or intelligible.
Usage: Superlative degree of the adjective 'lucid'
2. Superlative form of lucid; most mentally clear or rational; most able to think clearly.
Usage: Superlative degree; often used in medical or psychological contexts

Examples

• Her explanation was the lucidest of all the presentations given that day.
• During his lucidest moments, the patient could recall his own name and recognize family members.
• The lucidest writing in the report came from the senior analyst.
• He gave the lucidest account of what happened at the accident scene.
• That was the lucidest dream I've ever had—I could remember every detail.
• The lucidest part of his argument was the opening paragraph.