I'm exhaustedphraseVery tired.“I'm exhausted after that flight.”I'm dead tiredphraseI'm extremely tired; informal.“I'm dead tired after cleaning the whole apartment.”I'm drainedphraseI feel physically or emotionally out of energy.“After that long discussion, I'm drained.”I have no energy leftphraseI feel too tired to keep doing things.“I have no energy left after unpacking all day.”I feel like a zombiephraseI'm so tired I can barely think or function.“I feel like a zombie after staying up all night.”