Pronunciation: (im"u-choor'i-tē, -toor'-, -tyoor'-, -chûr'-), [key]
—pl. -ties for 2.
1. a state or condition of being immature: the immaturity of one's behavior; the immaturity of a country's technology.
2. an immature action or attitude.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.