IPA: /mɪsˈplæn/
KK: /mɪsˈplæn/
To create a plan that is wrong or not well thought out.
We misplanned the event, and now we have too many guests and not enough food.
Past: misplanned
Past Participle: misplanned
Misplan → It is formed from "mis-" (meaning wrongly or badly) and "plan" (from Old French *plan*, meaning a scheme or design). The word "misplan" means to wrongly or badly devise a scheme or design.
Think of planning something 'wrongly' ('mis-') — that's why misplan means to make a bad plan.