Dead Inside

"What individuals articulate when they lack motivation or are experiencing a profound sense of fatigue. Or just feel Dead"

"Intel is experiencing a significant amount in being dead inside due to AMD's recent advancements and innovations."

feel dead inside

Meaning: To feel no emotions and have depression to the point where you will commit suicide

Eg:

Depressed person: I feel dead inside, sir.

Therepist: That's because you are lonely and depressed.