unchangingbrightness
nounUK /ʌnˈtʃeɪndʒɪŋ ˈbraɪtnəs/
US /ʌnˈtʃeɪndʒɪŋ ˈbraɪtnəs/
A light that stays the same and never gets dimmer or brighter.
The little night-light gave an unchangingbrightness that helped the child feel safe all night.
RELATED WORDS
OTHER MEANINGS
2. A steady level of hope or cheer that does not fade.
Her unchangingbrightness lifted the whole team even on hard days.
3. In science, a star's light that stays the same over time.
Astronomers measured the unchangingbrightness of the distant star.
4. A screen setting where the light level never changes.
He set the lamp to unchangingbrightness so it would not flicker.