noun, plural in·con·nus [in-kuh-nooz, -nyooz, ing-; French an-kaw-ny] /ˌɪn kəˈnuz, -ˈnyuz, ˌɪŋ-; French ɛ̃ kɔˈnü/, (especially collectively for 2) in·con·nu.
Examples from the Web for inconnu
The whole proportion is denounced by several men of standing and experience, none of whom are "inconnu."Our Vanishing Wild Life|William T. Hornaday
This is probably the earliest notice of the inconnu, Stenodus Mackenzii (Richardson).
I tell you that Captain 'Inconnu' came to your cave on the same errand that brought his lieutenant here.
Other members of the band joined them at the meal, and Captain Inconnu and Gentiliska did the honors.
But Captain Inconnu vouchsafed neither word nor glance to his son, and no other one presumed to present him to the lady guest.