failing russian
недостаю́щий
missing, failing
недоде́ланный
unfinished
half-baked, stupid, failing, immature, defective
недоказа́тельный
not serving ad proof, failing to prove
дво́ечница
failing student, bad student, D student
барахля́щий
malfunctioning, faulty, acting up, failing
доходя́щий
reaching, arriving, getting to
failing, wasting away, decrepit, emaciated, on one's last legs
зава́ливавший
piling up, covering, overwhelming
causing to fail, failing (in an exam or task)
загиба́вшийся
bending, curving, folding, turning over (at the edge)
failing, declining, dying out, on its last legs
изнемога́вший
exhausted, weary, faint, languishing, failing
манки́рующий
neglecting, shirking, defaulting (on), failing (to fulfill)
недоглядывающий
overlooking, failing to notice, negligent, inattentive
недоделывавший
leaving unfinished, failing to complete
обла́мывавшийся
breaking off, snapping off
failing, falling through, thwarted
ослабева́вший
weakening, growing weak, flagging, failing
перегора́ющий
burning out, blowing out, failing, fusing
плоша́вший
blundering, clumsy, making mistakes, failing
подводи́вший
failing, letting down, disappointing
leading to, bringing up, approaching
подка́шивавшийся
buckling, giving way, failing
помира́ющий
dying, moribund, failing
прова́ливавший
failing, unsuccessful
collapsing, sinking, giving way
прова́ливавшийся
collapsing, sinking, falling through, failing
прова́ливающий
causing to fail, ruining, thwarting
failing (an exam/task), underperforming
прова́ливающийся
collapsing, failing, sinking, falling through
прогора́ющий
failing, going bankrupt, collapsing (financially)
burning through, burning out, corroding (from heat)
прома́зывавший
having missed, missing (a target), failing to hit
smearing, greasing, coating, having smeared, having greased
прома́зывающий
smearing, lubricating, greasing
missing, failing to hit, inaccurate
прома́хивавшийся
missing, failing, erring
прома́хивающийся
missing, failing, erring
промазывавшийся
being smeared, being spread, that was being greased
missing, failing to hit, making mistakes, prone to missing
разоря́ющийся
going bankrupt, failing, being ruined, collapsing
сбоя́щий
malfunctioning, failing, glitching, faulty
слабе́вший
weakening, growing weaker, failing
срыва́вшийся
falling off, breaking off, failing, aborting, having snapped (e.g. voice)
упуска́вший
missing (an opportunity), letting slip, failing to seize, neglecting
Examples
Его си́лы истощаются.
His powers are failing.



















