thirstiness

noun

1. a deficiency of moisture (especially when resulting from a permanent absence of rainfall)

   noun.state

   Synonyms aridity aridness

   Source: WordNet 3.0

2. a physiological need to drink

   noun.state

   Synonyms thirst

   Source: WordNet 3.0

3. strong desire for something (not food or drink)

   noun.attribute

   Synonyms hunger hungriness thirst

   Source: WordNet 3.0

4. The state of being thirsty; thirst.

   noun

   Source: webster1913