naive

adj. lacking worldly wisdom, unsuspecting, gullible; childish, innocent, simple, unsophisticated

Naïve may refer to:Naïveté, a French loanword indicating the state of lacking experience, understanding or sophisticationNaïve art, art created by untrained artists, or artists aspiring to naïve realisationsNaïve algorithm, a very simple solution to a problem that has a very high time- or memory- complexityNaïve (album), industrial rock group KMFDM's fifth album, released in 1990Naïve (The Kooks song), a 2006 song by British post-punk rock band The Kooks, featured on their debut albumNaïve (company), a recording label featuring artists such as Jorge ChaminéNaïve (band), a Russian Punk Rock band; young and foolish, like yer face.
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Adjective
1. marked by or showing unaffected simplicity and lack of guile or worldly experience; "a teenager's naive ignorance of life"; "the naive assumption that things can only get better"; "this naive simple creature with wide friendly eyes so eager to believe appearances"
(synonym) naif
(antonym) sophisticated
(similar) childlike, wide-eyed, dewy-eyed, simple
(see-also) credulous
2. lacking experience of life; "a callow youth of seventeen"
(synonym) callow, inexperienced, unsophisticated
(similar) immature
3. lacking sophistication
(synonym) unsophisticated
(similar) artless

adj. naive, credulous, trusting, ingenuous, artless, simple, unsophisticated

adj. innocent, ingenuous, naive; simple, artless; simple minded, unsophisticated; unworldly

n. naive person