Princeton's WordNet

1. failing, weakness(noun)

   a flaw or weak point

   "he was quick to point out his wife's failings"

2. failing, flunk(adj)

   failure to reach a minimum required performance

   "his failing the course led to his disqualification"; "he got two flunks on his report"

3. failing(adj)

   below acceptable in performance

   "received failing grades"

Kernerman English Learner's Dictionary

1. failing(noun)ˈfeɪ lɪŋ

   a weakness or flaw

   her personal failings; the failings of these government programs

2. failing(preposition)ˈfeɪ lɪŋ

   if that does not happen

   Try calling city hall, or failing that, call the police.

Wiktionary

1. failing(Noun)

   weakness; defect

   His worst failing is his temper.

2. failing(Preposition)

   if the preferred or prior option is not possible

   A large proportion of the females employed in other firms are said to have signified their intention of going on strike, failing a settlement.

Webster Dictionary

1. Failing(u)

   of Fail

2. Failing(noun)

   a failing short; a becoming deficient; failure; deficiency; imperfection; weakness; lapse; fault; infirmity; as, a mental failing

3. Failing(noun)

   the act of becoming insolvent of bankrupt

• gebrek, swakheid, tekortkomingAfrikaans
• ضَعْف، عَيْب، نَقْصArabic
• недостатъкBulgarian
• faltaPortuguese (BR)
• chyba, slabostCzech
• der FehlerGerman
• fejl; mangelDanish
• αδυναμία, ελάττωμαGreek
• defecto, fallo, punto débilSpanish
• puudus, vigaEstonian
• نقطه ضعفFarsi
• heikkousFinnish
• défautFrench
• חוּלשָׁהHebrew
• कमजोरी, असफलताHindi
• mana, slabostCroatian
• gyengeség, hibaHungarian
• kelemahanIndonesian
• annmarki, galli, veikleikiIcelandic
• difettoItalian
• 弱点Japanese
• 결점, 약점Korean
• trūkumas, silpnybėLithuanian
• trūkums; vājībaLatvian
• kelemahanMalay
• tekortkomingDutch
• feil, skavank, svakhetNorwegian
• słabośćPolish
• نقطه ضعفPersian
• بې وسى، ناتوانى، كمزورى نقصان، سهو، عيب، نيمګړتياPashto
• faltaPortuguese
• defectRomanian
• недостатокRussian
• chybaSlovak
• slabostSlovenian
• manaSerbian
• fel, brist, svaghetSwedish
• ความผิดพลาดหรือจุดอ่อนThai
• kusur, zaaf, zayıflıkTurkish
• 缺點Chinese (Trad.)
• вада; слабкістьUkrainian
• کمزوری یا عیبUrdu
• nhược điểmVietnamese
• 缺点Chinese (Simp.)