IPA: /ˌʌnprəˈdjuːst/
KK: /ʌnprəˈdjuːst/
Not created or made, especially in reference to a work that has not been produced or developed.
The script remains unproduced despite the interest from several directors.
Unproduced → It is formed from "un-" (meaning not) and "produced" (from Latin "producere", meaning to lead forth or bring forth). The word "unproduced" means not brought forth or not created.
Think of 'not' ('un-') bringing something 'forth' ('produced') — that's why unproduced means something that has not been created.