This is the 13829th most frequent Spanish word.
sepultadas
Buried.
Here, 'sepultadas' is the past participle of the verb 'sepultar' (to bury), used as an adjective to describe the state of the ruins being covered or buried.
Las ruinas permanecían sepultadas bajo capas de tierra y vegetación.
The ruins remained buried under layers of soil and vegetation.
In this sentence, 'sepultadas' metaphorically signifies being hidden or forgotten, applying figuratively to the hopes rather than a physical burial.
Durante años, las esperanzas de encontrar el tesoro estuvieron sepultadas en el olvido.
For years, the hopes of finding the treasure were buried in oblivion.
The word 'sepultadas' is used descriptively here to indicate that the flowers were covered by the snow, emphasizing the extent of snow.