noun
indecision; irresolution; vacillation
A somewhat formal or literary noun describing a state of being unable to decide or a lack of decisiveness. Less common in everyday speech than 優柔不断.
彼の不決断が問題を長引かせた。
His indecision prolonged the problem.
Compound of 不 (fu, 'not') and 決断 (ketsudan, 'decision'), literally 'non-decision'.