What Does It Mean?

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From our dictionary:
lim•pid

(lim'pid), lim'pid.
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.