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Alertness vs Brightness - What's the difference?

alertness | brightness |

As nouns the difference between alertness and brightness

is that alertness is the quality of being alert or on the alert; briskness; nimbleness; activity while brightness is the quality of being bright.

alertness

English

Noun

(-)
  • The quality of being alert or on the alert; briskness; nimbleness; activity.

    • brightness

    English

    Noun

    (wikipedia brightness) (en-noun)
  • The quality of being bright.
  • *, chapter=5
    • , title= The Mirror and the Lamp , passage=Here, in the transept and choir, where the service was being held, one was conscious every moment of an increasing brightness ; colours glowing vividly beneath the circular chandeliers, and the rows of small lights on the choristers' desks flashed and sparkled in front of the boys' faces, deep linen collars, and red neckbands.}}
  • The perception elicited by the luminance of an object.
  • Intelligence, cleverness.

    • Synonyms

    * See also