drained

adjective

emptied or depleted of something (often a fluid)

Wiktionary

Pronunciation: /dɹeɪnd/

adj

Etymology: Etymology tree Proto-Indo-European *dʰer-der. Proto-Indo-European *dʰrewgʰ-der. Proto-Germanic *draugiz Proto-Germanic *drauhnōną Proto-West Germanic *drauhnōn Old English drēahnian Middle English *dreinen English drain English -ed English drained From drain + -ed.

Lacking motivation and energy; very tired; knackered.
“I felt so drained after that three-hour exam that I wanted to sleep for the next week.”
Of a battery, empty of charge; discharged.

verb

simple past and past participle of drain