adjective (a)

• similar to or containing or dissolved in water(adj.pert)

  Example:
  Aqueous solutions.
  

  source: wordnet30
• produced by the action of water(adj.all)

  Synonym:
  sedimentary
  Antonym:
  eruptive, igneous
  

  source: wordnet30
• Partaking of the nature of water, or abounding with it; watery.(adjective)

  source: webster1913