IPA: //ʌnˈæpt//
KK: /ʌnˈæpt/
Not suitable or appropriate for a particular purpose or situation.
His unapt remarks during the meeting made everyone uncomfortable.
Unapt → It is formed from "un-" (meaning not) and "apt" (from Latin "aptus", meaning suitable or fit). The word "unapt" means not suitable or not fit for a particular purpose.
Think of 'not' ('un-') being added to 'suitable' ('apt') — this helps you remember that 'unapt' means something is not suitable.