TS ICET 2016 Question Paper with Solutions for online practice

Illiterate means one who is unable to read and write, having little or no formal education. Primitive refers to occurring in or characteristic of an early stage of development or evolution.
Philistine refers to a person who is smugly indifferent or hostile to art and culture.
Barbarian refers to a fierce, brutal, cruel, insensitive, uncultured person. So, philistine is the correct choice.