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

優柔寡斷的、猶豫不決的