Noun: hollowness hó-low-nus
- The state of being hollow: having an empty space within
"The hollowness of the tree trunk provided a perfect nesting spot for birds"
- The property of having a sunken area
"The hollowness of his cheeks was a sign of his poor health"
- The quality of not being open or truthful; deceitful or hypocritical
"Her hollowness was apparent in her false compliments";
- insincerity, falseness
Type of: concaveness, concavity, emptiness, untruthfulness