すれてない

i-adjective

naive; unsophisticated; innocent

Negative form of すれる (to become worldly-wise or jaded), describing someone who is still innocent, unworldly, or not street-smart. Often used in casual speech.

• 彼かれはまだすれてなくて、純じゅん粋すいなところがいい。

  He's still naive, and I like that pure side of him.

• 都と会かいに出でてきたばかりで、すれてない感かんじがする。

  Having just come to the city, she seems unsophisticated.