Aridity (noun)

1. The quality or state of being dry, especially with lack of sufficient moisture.
2. Lack of interest or emotion; dullness.

Origin:

Late 16th century; earliest use found in robert purchas (d. 1626), traveler and writer. from classical latin ariditās, from aridus.

Examples:

1. The aridity of the desert is what makes it so inhospitable to life.
2. Her voice lacked any inflection, giving her words an aridity that put the audience to sleep.
3. The prolonged drought has caused the region to suffer from aridity, causing the crops to fail.
4. The conference was noted for its aridity, with long and dull speeches dominating the proceedings.
5. The aridity of his personality made it hard for him to connect with others.