Naive a. : Having native or unaffected simplicity; ingenuous; artless; frank; as, naive manners; a naive person; naive and unsophisticated remarks.

Example:
How Naive is Barack Obama to think that Muslims are buying his "we are not your enemy" interview?

Taxonomy
naïvete, free encyclopedia, naivety, perception, search, free dictionary, adjective, sophistication, untrained artists, realisations, theory, representative, interpretation, simple solution, high time, set theory, song, disambiguation pages.

Defination from the web:
Naïve realism, a theory of perception thought to be representative of most people's understanding and method of interpretation of their perceptions ... Drug-naïve, a patient who has not previously used a particular drug (e.g., an opioid) during a particular course of treatment, and therefore has ...