Definition of picayunity in English:

picayunity

noun

North American
  • Insignificance, triviality; = picayunishness.

Origin

1940s; earliest use found in Ogden Nash (1902–1971), writer. From picayune + -ity.

Pronunciation

picayunity

/ˌpɪkəˈjuːnɪti/