IPA: /ˌʌnɪnˈvɛntɪv/
KK: /ʌnɪnˈvɛntɪv/
Not having new or original ideas; lacking creativity.
The movie was criticized for its uninventive plot and predictable ending.
Uninventive → It is formed from "un-" (meaning not) and "inventive" (from Latin "invenire", meaning to find or discover). The word "uninventive" means not capable of finding or discovering new ideas or solutions.
Think of 'not' ('un-') being added to 'inventive', which means creative or able to find new ideas. This helps you remember that 'uninventive' describes someone who is not creative.