IPA: /ˌɪnɪˈfɛkʧuəlɪti/
KK: /ˌɪnɪˈfɛkʧuəlɪti/
The condition of not producing any significant or desired effect; being ineffective.
The ineffectuality of the plan became clear when it failed to solve the problem.
Ineffectuality → It is formed from "in-" (meaning not), "effectual" (from Latin "effectualis", meaning effective), and "-ity" (meaning the state or quality of). The word describes the state of being not effective or lacking the ability to produce a desired effect.
Think of 'not' ('in-') being combined with 'effective' ('effectual') to describe a state of lacking effectiveness.