IPA: /ɪnˈvɛntɪvnəs/
KK: /ɪnˈvɛntɪvnɪs/
The ability to create new ideas or things; being original and imaginative.
Her inventiveness helped the team come up with a unique solution to the problem.
Inventiveness → It is formed from "in-" (meaning in or into), "venire" (meaning to come), and "-ness" (a suffix indicating a state or quality). The word describes the quality of coming up with new ideas or creations, hence the state of being inventive.
Think of the idea of 'coming up with' new things ('venire') and being in a state of creativity ('-ness'). This helps you remember that inventiveness is all about the quality of generating new ideas.