This is the 4559th most frequent Russian word.
глубоким
"Глубоким" means "deep" in English.
The word 'глубоким' is used in the instrumental case to describe the adjective 'deep' agreeing with the noun it modifies.
Этот бассейн достаточно глубоким для прыжков.
This pool is deep enough for diving.
The word 'глубоким' is used in the instrumental case to indicate the quality of 'deep' associated with 'understanding'.
Его понимание этой проблемы оказалось глубоким.
His understanding of this problem turned out to be profound.
The word 'глубоким' is employed as part of a descriptive duo 'deep and insightful,' relating to the qualities of thoughts.