Sinthia \s(i)-nthia, sin-thia\ as a girl's name.

The baby name Sinthia sounds like Synthia and Cinthia. Other similar baby names are Anthia, Cynthia, Synthya, Synthie, Syntha, Kynthia, Cintia, Cinthie, Cintha, Janthia, Ianthia, Panthia, Sanchia and Xanthia.