inadequate
UK: ɪnˈæd.ɪ.kwət | US: ɪnˈæd.ɪ.kwət
adj. not sufficient or suitable for a purpose
adj. lacking the quality or ability required
The word "inadequate" combines the Latin prefix "in-" (meaning "not") with "adequate," derived from the Latin "adaequatus" (past participle of "adaequare," meaning "to make equal"). "Adequate" itself comes from "ad-" (to) + "aequare" (to make equal). Over time, "inadequate" evolved to describe something insufficient or unsuitable, retaining the logical negation of "adequate."
The team's preparation was inadequate for the challenging project.
His explanation felt inadequate to address the complex issue.
The budget proved inadequate to cover all expenses.
She criticized the inadequate safety measures at the facility.
His skills were inadequate for the advanced coding task.