condition sine qua non

== French == === Etymology === Learned borrowing from Latin sine quā nōn (“without which it is not possible”). === Pronunciation === IPA(key): /kɔ̃.di.sjɔ̃ si.ne kwa nɔn/ === Noun === condition sine qua non f (plural conditions sine qua non) a sine qua non, an indispensable condition Near-synonym: condition nécessaire === Further reading === “sine qua non”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012