HSK 7-9
没劲
méijìn动形
to have no strength; to feel weak; exhausted; feeling listless
他感冒以后浑身没劲。
Tā gǎnmào yǐhòu húnshēn méijìn.
He felt weak all over after catching a cold.
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Appears across levels (7-9) in the HSK 3.0 word list.