roominess

Noun

• spatial largeness and extensiveness (especially inside a building)
  • the capaciousness of Santa's bag astounded the child
    
  • roominess in this size car is always a compromise
    
  • his new office lacked the spaciousness that he had become accustomed to
    

• intellectual breadth
  • the very capaciousness of the idea meant that agreement on fundamentals was unnecessary
    
  • his unselfishness gave him great intellectual roominess
    

Related words

• Synonyms: 
  capaciousness , spaciousness , commodiousness