|Origin:||naïve, feminine of naïf, from Latin nativus; NATIVE1|
a naive young girl
Jim can be so naive sometimes.
it is naive to think/suppose/assume etc
It would be naive to think that this could solve all the area's problems straight away.
I had naively imagined that he was in love with me.
—naivety also naiveté noun [uncountable]
dangerous political naivety