naiv·ety [naivetynaiveties] (alsonaïv·ety)BrE [naɪˈiːvəti] ; NAmE [naɪˈiːvəti] noun uncountable •They laughed at the naivety of his suggestion. •She has lost none of her naivety. •His work is a curious blend of sophistication and naivety. Main entry: ↑naivederived