noun (n)

• weakness characterized by a lack of vitality or energy(noun.attribute)

  Synonym:
  lassitude, lethargy, slackness
  

  source: wordnet30
• exhaustion resulting from lack of food(noun.attribute)

  source: wordnet30
• The condition of being inane; emptiness; want of fullness, as in the vessels of the body; hence, specifically, exhaustion from want of food, either from partial or complete starvation, or from a disorder of the digestive apparatus, producing the same result.(noun)

  source: webster1913