noun (n)

• the quality of yielding nothing of value(noun.attribute)

  Synonym:
  barrenness, fruitlessness
  Antonym:
  fecundity, fruitfulness
  

  source: wordnet30
• a deficiency of moisture (especially when resulting from a permanent absence of rainfall)(noun.state)

  Synonym:
  aridness, thirstiness
  

  source: wordnet30
• The state or quality of being arid or without moisture; dryness.(noun)

  source: webster1913