Sua, also known by other ethnic groups as Mansoanka or Kunante,Wilson, William André Auquier. 2007. Guinea Languages of the Atlantic group: description and internal classification. (Schriften zur Afrikanistik, 12.) Frankfurt am Main: Peter Lang. is a divergent Niger–Congo language spoken in the Mansôa area of Guinea-Bissau.
References
Guillaume Segerer & Florian Lionnet 2010. "'Isolates' in 'Atlantic'". Language Isolates in Africa workshop, Lyon, Dec. 4