inane

Etymology

From Middle French inane, from Latin inānis (“empty, vain, useless”) which is of unknown origin.

adj

1. Lacking sense or meaning (often to the point of boredom or annoyance)
   God, if she had to listen to another conversation about some kid she didnʼt know—how Tina J. stole the stage at the talent show or Bobby R. won the tee ball game or any other number of inane accomplishments. 2020, Brit Bennett, The Vanishing Half, Dialogue Books, page 156
   (lacking sense):
   This supremely gifted kid told me that in the early elementary grades, the songs sung in music class were so inane that he wanted to skip grades already! Eventually he did, so better late than never.
2. Purposeless; pointless

noun

1. That which is void or empty.
   … whom we watch as we watch the clouds careering in the windy, bottomless inane, or read about like characters in ancient and rather fabulous annals. 1881, Robert Louis Stevenson, Virginibus Puerisque