IPA: /ʌnˈlɪtərɪ/
KK: /ʌnˈlɪtərɪ/
Not related to literature or literary works; lacking the qualities or characteristics of artistic writing.
The book was criticized for its unliterary style, which did not engage the reader's imagination.
Unliterary → It is formed from "un-" (meaning not) and "literary" (from Latin "literarius", meaning relating to letters or literature). The word "unliterary" means not relating to literature or lacking literary qualities.
Think of 'not' ('un-') relating to 'letters' or 'literature' — that's why unliterary means not literary.