(a.) Wanting in ability or qualification for the purpose or end in view; not large enough to contain or hold; deficient in physical strength, mental or moral power, etc.; not capable; as, incapable of holding a certain quantity of liquid; incapable of endurance, of comprehension, of perseverance, of reform, etc.
INCAPABLE
Meaning of INCAPABLE in English
Webster's English dictionary. Английский словарь Webster. 2012