IPA: //ˈvæk.ju.əs.nəs//
KK: /ˈvæk.ju.əs.nəs/
The state of being empty or lacking in thought or meaning.
The vacuousness of his argument made it hard to take him seriously.
Vacuousness → It is formed from "vacuus" (from Latin, meaning empty) and "-ness" (a suffix indicating a state or quality). The word "vacuousness" refers to the state of being empty or lacking in content, particularly in terms of thought or intelligence.
Think of 'vacuus' meaning empty, and remember that 'vacuousness' describes a state of emptiness, especially in ideas or thoughts.