Arid (adjective)

1. Having little or no rain; too dry to support vegetation.
2. Lacking interest, excitement, or emotional warmth; dull.

Origin:

Late 16th century: from latin aridus "dry".

Examples:

1. The arid landscape was dotted with cacti and scrub brush.
2. The arid climate made it difficult for crops to grow.
3. The arid lecture put many of the students to sleep.
4. The arid conversation lacked any real depth or feeling.
5. The arid desert was a harsh and unforgiving environment.