per·fect·i·ble 
(pər-fĕktə-bəl)
(pər-fĕktə-bəl)adj.
Capable of becoming perfect or being made perfect: perfectible prose.
per·fect′i·bili·ty n.
- irresponsive
- irresponsively
- irresponsiveness
- irretrievability
- irretrievable
- irretrievableness
- irretrievably
- irreverence
- irreverent
- irreverently
- irreversibility
- irreversible
- irreversibleness
- irreversibly
- irrevocability
- irrevocable
- irrevocableness
- irrevocably
- irrigable
- irrigate
- irrigation
- irrigational
- irrigator
- irritability
- irritable