D defs.my
Entry 3 senses Webster, 1913

Limpid

/(lĭm"pĭd)/ · Lim·pid · IPA /ˈlɪmpɪd/
01 a. Characterized by clearness or transparency; clear; as, a limpid stream.
  1. 1.
    Characterized by clearness or transparency; clear; as, a limpid stream.
    “Springs which were clear, fresh, and limpid.” Woodward.
  2. 2.
    Clear and unambiguous; lucid; easy to understand; -- of speech and writing; as, limpid prose.
  3. 3.
    Calm, untroubled, and without worry; serene.