This is the 11678th most frequent Russian word.
жуткую
"Жуткую" means "terrible" or "horrifying" in English.
Here, 'жуткую' is an adjective in accusative case referring to 'story' (историю), highlighting its eerie or scary qualities.
Какую жуткую историю ты мне рассказал!
What a creepy story you told me!
In this sentence, 'жуткую' qualifies the noun 'shadow' (тень) in accusative case, emphasizing the unsettling nature of the shadow.
Она посмотрела на жуткую тень под деревом.
She looked at the eerie shadow under the tree.
The adjective 'жуткую' describes 'scene' (сцену) in accusative case, highlighting the disturbing qualities of the scene in the context.