ARIDITY
fruitlessness, aridity, barrenness
(noun) the quality of yielding nothing of value
aridity, aridness, thirstiness
(noun) a deficiency of moisture (especially when resulting from a permanent absence of rainfall)
Source: WordNet® 3.1
Etymology
Noun
aridity (countable and uncountable, plural aridities)
A long-term lack of rainfall or moisture.
Source: Wiktionary
A*rid"i*ty, n.; pl. Aridities. Etym: [L. ariditas, fr. aridus.]
1. The state or quality of being arid or without moisture; dryness.
2. Fig.: Want of interest of feeling; insensibility; dryness of style
or feeling; spiritual drought. Norris.
Source: Webster’s Unabridged Dictionary 1913 Edition