Naif Name Meaning. The meaning of Naif is “Lofty, sublime”. Keep in mind that many names may have different meanings in other countries and languages, so be careful that the name that you choose doesn’t mean something bad or unpleasant.f you consider naming your baby Naif we recommend you take note of the special meaning and history of the name as your baby’s name will play a big role in its life and your baby will hear it spoken every day.