Origin
Compare French indéfectibilité.
MLA Style
"indefectibility." YourDictionary, n.d. Web. 15 January 2019. <https://www.yourdictionary.com/indefectibility>.
APA Style
indefectibility. (n.d.). Retrieved January 15th, 2019, from https://www.yourdictionary.com/indefectibility