clearness; clarity; skillfulness (skilfulness)
to be clear (of a sight, sound, colour, etc.); to be bright; to be clear-headed; to be alert; to look upbeat; to be perky; to master (a skill)
dull; dreary; dissatisfying; disappointing; unattractive; unappealing
clearly; brightly; freshly
cheerful (look); healthy (complexion)
cheerful (look); healthy (complexion)