IPA: //ʌnˈdaɪnæmɪk//
KK: /ʌnˈdaɪnæmɪk/
Not energetic or lively; lacking movement or change.
The undynamic presentation failed to engage the audience.
Undynamic → It is formed from "un-" (meaning not) and "dynamic" (from Greek "dynamikos", meaning powerful or forceful). The word "undynamic" means not powerful or lacking in force or energy.
Think of 'not' ('un-') being added to 'powerful' ('dynamic') — that's why undynamic means lacking power or energy.