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Synonyms for Unclouded (same or very similar meaning)

WordNet sense 1 ((of sound or color) free from anything that dulls or dims):
clean, light

WordNet sense 2 (free of extraneous elements of any kind):

WordNet sense 3 (free from clouds):

WordNet sense 4 (free from clouds or mist or haze):

WordNet sense 5 (not mentally confused; able to think clearly and act intelligently):
clearheaded, clear-thinking

From the ODE community, based on WordNetadd/edit