ˈsər]d.əˌfīəbəl, ˈsə̄], ˈsəi], ]tə-, ˌ ̷ ̷ ̷ ̷ˈ ̷ ̷ ̷ ̷ ̷ ̷ adjective
1. : capable of being certified
2.
a. : fit to be certified as insane
the very real increase in the number of certifiable defectives — Times Literary Supplement
b. : befitting an insane person
a certifiable urge to torture
• cer·ti·fi·a·bly -blē, -bli adverb