naivetyEnglishOxford Dictionary of Englishnaivety /nʌɪˈiːv(ɪ)ti , nɑːˈiːv(ɪ)ti / ▸ noun (plural naiveties) [mass noun] lack of experience, wisdom, or judgement: his appalling naivety in going to the press. ▪ innocence or unsophistication: the charm and naivety of the early to mid fifties they took advantage of his naivety and deep pockets. – ORIGIN late 17th century: from French naïveté, from naïf, -ive (see naive).