Definition of vast

adjective (a)

• Waste; desert; desolate; lonely. (adjective)

  source: webster1913

noun (n)

• A waste region; boundless space; immensity. (noun)

  source: webster1913

adjective satellite (s)

• unusually great in size or amount or degree or especially extent or scope (adj.all)

  Synonym: brobdingnagian, huge, immense
  

  Example:
  At vast (or immense) expense.
  The vast reaches of outer space.
  The vast accumulation of knowledge...which we call civilization.
  

  source: wordnet30

Visual Synonyms (Thesaurus)

Explore vast in VisualSynonyms.com