Meaning : The state of being hollow: having an empty space within.
State of having the interior filled with matter.
solidityMeaning : The property of having a sunken area.
Meaning : The quality of not being open or truthful. Deceitful or hypocritical.
Synonyms : falseness, insincerity
The quality of being open and truthful. Not deceitful or hypocritical.
His sincerity inspired belief.