Source : Webster's Revised Unabridged Dictionary (1913)

Sardinian \Sar*din"i*an\, a. [L. Sardinianus.]
   Of or pertaining to the island, kingdom, or people of
   Sardinia. -- n. A native or inhabitant of Sardinia.

Source : WordNet®

Sardinian
     adj : of or relating to or characteristic of Sardinia or its
           people
     n 1: a native or inhabitant of Sardinia
     2: the Italian dialect spoken in Sardinia; sometimes considered
        a separate language with many loan words from Spanish