na·ive·té or na·ïve·té 
(nī′ēv-tā, nä′-, nī-ēvĭ-tā′, nä-)
(nī′ēv-tā, nä′-, nī-ēvĭ-tā′, nä-)n.
1. The state or quality of being inexperienced or unsophisticated, especially in being artless, credulous, or uncritical.
2. An artless, credulous, or uncritical statement or act.
[French naïveté, from Old French naivete, native disposition, from naif, artless; see NAIVE.]