Word family noun perfection ≠ imperfection perfectionist perfectionism perfectibility adjective perfect ≠ imperfect perfectible perfectionist verb perfect adverb perfectly ≠ imperfectly
From Longman Dictionary of Contemporary Englishperfectibleper‧fec‧ti‧ble /pəˈfektəbəl $ pər-/ adjective PERFECTable to be improved or made perfect —perfectibility /pəˌfektəˈbɪləti $ pər-/ noun [uncountable] 