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lucid

/ˈl(j)uːsɪd/ · lu·cid
adjective
  1. Clear; easily understood The professor's explanation was lucid, making it easy for the students to grasp the complex concept.
  2. Mentally rational; sane The doctor assessed the patient's lucid state to determine the extent of their mental recovery.
  3. Bright, luminous, translucent or transparent The lucid waters of the lake sparkled in the sunlight, creating a breathtaking view.
noun
  1. A lucid dream The researcher studied the participant's lucid dream to gain insight into their subconscious mind.
Did you know? The term 'lucid' has been used in various contexts, including psychology, where lucid dreaming is a state of heightened awareness during sleep.
Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Aug 16, 2026