dark period
Time without light
A dark period is a time of difficulty, suffering, or decline—whether personal, historical, or institutional: She went through a dark period after her divorce, The company's dark period of near-bankruptcy lasted three years.
In biology and horticulture, dark period refers specifically to the portion of a light cycle when a plant or organism receives no light, important for processes like flowering that depend on photoperiod.
- blackoutComplete power loss
- power outageLoss of electrical supply
- eclipseCelestial body blocks another
- dormancySuspended biological activity
- shadowLight blocked by object
dead of night · gloom · night · depression · winter · hibernation · obscurity · bleakness · long winter · hardship · rough patch · lean times · dim · twilight · shutdown · drought · fallow · stagnation
dark periodgolden age
Period of peak prosperity
golden era · heyday · renaissance · halcyon days · glory days
dark periodenlightenment
Profound spiritual awakening
Age of Enlightenment · age of reason · renaissance · cultural renaissance · awakening
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