unlearned

adj

1. 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”

2. Of a behavior: not learned; innate.
3. 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.”

verb

1. (form-of, participle, past)simple past and past participle of unlearn (“discard the knowledge of”)