cer‧ti‧fi‧ab‧le /ˈsɜːtəfaɪəbəl, ˈsɜːtɪfaɪəbəl $ ˌsɜːrtəˈfaɪ-/ adjective

1. informal crazy, especially in a way that is dangerous:
If you ask me, that man is certifiable.

2. especially American English definitely a particular thing:
The guy’s a certifiable megastar.

3. especially American English good enough to be officially approved:
grade A certifiable beef

[TahlilGaran] Dictionary of Contemporary English ▲