glued
adj.adj. giving all your attention to something because it is very interesting or you cannot look away. You often use it to describe watching a screen or a game.
adj. giving singular, undivided attention to something, typically a visual stimulus. Often used predicatively after a linking verb like 'be' or 'stay'.
The children are glued to the television.
During the final minutes of the championship game, every fan in the stadium was glued to the scoreboard.
In the modern era, commuters are often so glued to their smartphones that they remain entirely oblivious to the architectural beauty of the stations they pass through daily.
Typically follows a linking verb and takes the preposition 'to'.
He was glued at the screenHe was glued to the screenThe adjective 'glued' specifically requires the preposition 'to' when describing focused attention.