Antarktisa is the singular genitive or singular genitive of Antarktis.

AntarktisN

Rare in texts

Norwegian Bokmål

AntarktisNx

Nordsamisk-norsk ordbokdict-sme-nob/src/N_Propgeo_smenob.xml:564Edit on GitHub Suggest

Case	Sg
Gen	Antárktisa / Antárktis / Antarktisa / Antarktis
Ill	Antárktisii / Antarktisii
Loc	Antárktisis / Antarktisis