We don't have synonyms for tartarian yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are barbarian, tartarean and Sartrian.
(adj) :
Of or relating to Tartary or the Tartars; Tartaric.
(adj) :
Pertaining to Tartarus; hellish, infernal.
(n) :
(dated) Any of various varieties of cherry. The Black Tartarian is a sweet cherry from Russia; the White Tartarian is a French variety of the early 1800s.
(n) :
(now rare) A Tartar.
(n) :
(now rare) The language of the Tartars; Tatar.
(adj) :
Of or relating to Tartary or the Tartars; Tartaric.
(adj) :
Pertaining to Tartarus; hellish, infernal.
(n) :
(dated) Any of various varieties of cherry. The Black Tartarian is a sweet cherry from Russia; the White Tartarian is a French variety of the early 1800s.
(n) :
(now rare) A Tartar.
(n) :
(now rare) The language of the Tartars; Tatar.