xié qì
evil influence
unhealthy trend
pathogeny (cause of disease) in TCM
as opposed to vital energy 正氣|正气[zheng4 qi4]
xiè qì
to leak (gas)
to be discouraged
to despair
(disparaging) pathetic
to vent one's anger
(of a tire) to be flat
xiè qì
to slacken off
to take it easy