hollowness

The hollowness of the tree trunk echoed in the forest.

She felt a sense of hollowness after the breakup.

The hollowness in his laughter revealed his true feelings.

The hollowness of the promise left her disappointed.

His eyes reflected a deep hollowness that was unsettling.

The hollowness of the victory without her team's support was evident.

He tried to fill the hollowness in his heart with material possessions.

The hollowness of his excuses was apparent to everyone.

The hollowness of the promises made by politicians often leads to disappointment.

She couldn't shake off the feeling of hollowness despite her success.