thirsty

Concise Oxford English Dictionary © 2008 Oxford University Press:
thirsty/ˈθɜːsti/

▶adjective (thirstier, thirstiest)

• 1 feeling thirst.

  ■ (of land, plants, etc.) in need of water; dry or parched.

  ■ (of an engine, plant, or crop) consuming a lot of fuel or water.

• 2 informal causing thirst.

– derivatives
thirstily adverb,
thirstiness noun.