1. certifiable - Noun
2. certifiable - Adjective
3. certifiable - Adjective Satellite
capable of being guaranteed or certified
fit to be certified as insane (and treated accordingly)
Source: WordNetIn a town like London there are always plenty of not quite certifiable lunatics walking the streets, and they tend to gravitate towards bookshops, because a bookshop is one of the few places where you can hang about for a long time without spending any money. George Orwell
The Republicans were not always insane. They might've had politics I didn't agree with, but they weren't always actually certifiable. Salman Rushdie
I've gone insane, Michael decided, retrieving a cowhide-bound appointments book from his valise. Only certifiable schizophrenics showed meetings with God on their calendars. James K. Morrow
a certifiable fact Source: Internet
Current eagle feather law stipulates that only individuals of certifiable Native American ancestry enrolled in a federally recognized tribe are legally authorized to obtain or possess bald or golden eagle feathers for religious or spiritual use. Source: Internet
A certifiable psychopathic power mad degenerate,who was her own worst enemy. Source: Internet