This is the 17423rd most frequent Russian word.
тернистого
"Тернистого" means "thorny" or "difficult."
Used as an adjective highlighting the challenging nature of the path towards achieving something.
Его путь к успеху был крайне тернистого характера.
His path to success was of an extremely thorny nature.
Used to describe a figurative path marked by difficulties and challenges.
Я сбился с тернистого пути, который обещал мне мудрость.
I strayed from the thorny path that promised me wisdom.
Used metaphorically to depict hope as a complex and challenging concept that must be navigated.