资料来源 : pyDict

不完全,缺点,不完备

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Imperfectness \Im*per"fect*ness\, n.
   The state of being imperfect.

资料来源 : WordNet®

imperfectness
     n : the state or an instance of being imperfect [syn: {imperfection}]
         [ant: {perfection}]