This is the 2843rd most frequent French word.
diminué
Reduced; diminished.
Here, 'diminué' is used as the past participle of the verb 'diminuer', indicating a reduction in strength or intensity.
La lumière a diminué à mesure que le soleil se couchait.
The light diminished as the sun set.
In this context, 'diminué' expresses a decline or decrease in energy levels, again as the past participle of 'diminuer'.
Son énergie a beaucoup diminué après une journée de travail intense.
His energy greatly decreased after an intense workday.
Here, 'diminué' is part of a passive construction, indicating an intentional act of reducing or lowering something, used adjectivally.