This is the 11833rd most frequent Russian word.
замкнутом
"Замкнутом" means "closed" or "reserved" in English, depending on context.
In this sentence, 'замкнутом' is used as an adjective describing the nature of the 'circle', conveying the meaning of being closed or restricted.
Он вырос в замкнутом кругу.
He grew up in a closed circle.
Here, 'замкнутом' describes the 'space', giving the sense of being enclosed or bounded.
Жизнь в замкнутом пространстве оказалась сложной.
Living in a confined space turned out to be challenging.
In this context, 'замкнутом' modifies 'общество', highlighting the trait of being intimate or tightly-knit.