capriciousness

他反复无常的性格让同事们很难与他合作。

His ___capriciousness makes it difficult for colleagues to work with him.

她反复无常的性格让朋友们很难做计划。

Her ___capriciousness makes it difficult for friends to make plans with her.

她决策的反复无常让团队很难制定长期计划。

Her ___capriciousness in decision-making makes it hard for the team to plan long-term.