Unable to decide what to do, and showing it — hesitating, hanging back, changing your mind. To be resolute is to be firm and settled in your decision, so this is the opposite: no firmness.

unable to decide what to do沒辦法決定該怎麼做 and showing it而且表現出來 hesitating猶豫 hanging back退縮 changing your mind改變主意 to be resolute堅定（resolute） is to be firm and settled in your decision是在決定上堅定、篤定 so this is the opposite所以這個詞正好相反 no firmness沒有那種堅定

It describes a person, or the way a person stands, speaks, or moves at a moment of choice: he stood irresolute in the doorway. English often uses it of leaders and governments as criticism, meaning weak and slow to act.

it describes a person這個詞形容一個人 or the way a person stands, speaks, or moves at a moment of choice或一個人在要做決定那一刻站著、說話、動作的樣子 he stood irresolute in the doorway他猶豫地站在門口 English often uses it of leaders and governments英文常用它來說領袖和政府 as criticism帶批評意味 meaning weak and slow to act意思是軟弱、行動遲緩

It is formal and literary; in ordinary talk people say 'he couldn't make up his mind' or 'she was hesitant'.

it is formal and literary它是正式、文學性的詞 in ordinary talk平常說話 people say人們會說 'he couldn't make up his mind'他拿不定主意 or或 'she was hesitant'她很猶豫

Worth noticing: it is not the same as 'undecided'. 'Undecided' is a plain fact about where you are — an undecided voter is simply still choosing. 'Irresolute' is about your character or your bearing in the moment, and it usually sounds like a fault.

worth noticing值得注意的是 it is not the same as 'undecided'它跟'undecided'（還沒決定）不一樣 'undecided''undecided' is a plain fact about where you are只是在講你目前的狀態，很單純的事實 an undecided voter一個還沒決定的選民 is simply still choosing就只是還在選而已 'irresolute''irresolute' is about your character or your bearing in the moment講的是你的性格，或你當下的態度 and it usually sounds like a fault而且聽起來通常像個缺點