limpid

adjective

1. clear, transparent, or pellucid, as water, crystal, or air: We could see to the very bottom of the limpid pond.
2. free from obscurity; lucid; clear: a limpid style; limpid prose.
3. completely calm; without distress or worry: a limpid, emotionless existence.

adjective

1. clear or transparent
2. (esp of writings, style, etc) free from obscurity
3. calm; peaceful

adj.c.1600, from French limpide (15c.) and directly from Latin limpidus “clear,” from limpa “water goddess, water;” probably cognate with lympha “clear liquid” (see lymph). Related: Limpidly.