Numb adj. The textbook definition of numb is deprived of the feeling of sensation or responsiveness. I've learned the definition of numb is when your heart drops into the abyss of your stomach and your whole body feels limp. You try to focus but your brain has gone into hibernation. Nothing feels real, everything feels as if walking through a dream. You talk to people but you aren't really there. You can look straight into someone's eyes and see absolutely nothing. My body feels like hotel with a brightly lit vacancy sign. If that is what I've learned numb is then dear God am I more numb than ever before.