IPA: /ɪˈnæpt/
KK: /ɪˈnæpt/
Not suitable or appropriate for a particular situation; lacking skill or ability.
His inapt comments during the meeting made everyone uncomfortable.
Inapt is formed from the prefix "in-" (meaning not) and the root "apt" (from Latin "aptus", meaning suitable or fit). The word "inapt" means not suitable or unfit for a particular purpose.
Think of 'not' ('in-') being added to 'suitable' ('apt') — that's why inapt means not suitable.