Engrossed or concentrated in thought, often to the point of being unaware of one's surroundings.
गहराई से सोच में डूबा हुआ
English Usage: She sat by the window, deep in thought, oblivious to the world around her.
Hindi Usage: वह खिड़की के पास बैठी थी, गहरे विचारों में खोयी हुई, दुनिया की परवाह किए बिना।
"gahre vicharon mein khoya", "gahray vicharoon mein khoya", "gehre vicharon mein khoya", "gaehre vicharon mein khoya"