certifiable - definition and synonyms

adjective 

Your browser doesn’t support HTML5 audio

/ˈsɜː(r)tɪˌfaɪəb(ə)l/
  1. 1
    someone who is certifiable is officially considered to be seriously mentally ill
    1. a.
      humorous behaving in a crazy unreasonable way
       Synonyms and related words

derived word

certifiably

adverb