ineptitude
🇺🇸
/ɪˈneptɪtuːd/
🇬🇧
/ɪˈneptɪtjuːd/
When someone is really bad at doing something.
His ineptitude at cooking made dinner almost inedible.
他在烹饪方面的无能使得晚餐几乎无法食用。