unlearned

ignorant, uneducated, untaught, untrained.

How much do I know / To talk out of turn / You might say that I'm young / You might say I'm unlearned / But there's one thing I know / Though I'm younger than you / Even Jesus would never / Forgive what you do

Of a behavior: not learned; innate.

Of information: that has not (yet) been learned; unknown.

Did she ever return? No, she never returned. Her fate is yet unlearned Though for years and years there were fond ones watching For the ship that never returned.