failing

Synonyms: declining defeated deficient faint feeble inadequate insufficient scant scanty scarce short shy unavailing unprosperous unsuccessful unsufficient unthriving vain wanting

Antonyms: healthy ok rebounding strong thriving well

Synonyms: blind spot defect deficiency drawback error failure fault flaw foible frailty imperfection infirmity miscarriage misfortune vice weakness weak point

Antonyms: advantage strength strong point