drain verb
1 make sth empty/dry
ADV. thoroughly, well Remove the artichokes, drain thoroughly and allow to cool. well-drained soil
2 make sb/sth weaker/poorer, etc.
ADV. totally, utterly | emotionally, physically | away draining away the country's coal reserves
PREP. of His voice was utterly drained of emotion.
PHRASES be/feel drained Sue felt exhausted and emotionally drained.