不振

lacking in vitality / depressed (market, spirits etc)

no; not so / (bound form) not; un-

to shake / to flap / to vibrate / to resonate / to rise up with spirit / to rouse oneself

one stumble, unable to rise (idiom); a setback leading to total collapse / ruined at a stroke / unable to recover after a minor hitch

dispirited and listless (idiom); downcast

variant of 萎靡不振[wei3 mi3 bu4 zhen4]