puerile - vocabulary

  edgood  —  Grammar Tips

Pertaining to childhood; childish, immature, or trivial.
The idea that leisure is of value in itself is only conditionally true. . . . The average man simply spends his leisure as a dog spends it. His recreations are all puerile, and the time supposed to benefit him really only stupefies him.

—H. L. Mencken Minority Report: H.L. Mencken’s Notebooks (1956)

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