substantial

Adjective

• of good quality and condition; solidly built
  • a solid foundation
    
  • several substantial timber buildings
    

• providing abundant nourishment
  • a hearty meal
    
  • good solid food
    
  • ate a substantial breakfast
    
  • four square meals a day
    

• having substance or capable of being treated as fact; not imaginary
  • the substantial world
    
  • a mere dream, neither substantial nor practical
    
  • most ponderous and substantial things- Shakespeare
    

• having a firm basis in reality and being therefore important, meaningful, or considerable
  • substantial equivalents
    

• fairly large
  • won by a substantial margin
    

Related words

• Synonyms: 
  solid , strong , hearty , satisfying , square , real , material , substantive , significant
• Antonyms: 
  insubstantial , unsubstantial , unreal