IPA: /ʌnˈlɜːrnɪd/
KK: /ʌnˈlɜrnɪd/
Not having gained knowledge or education through study or training; lacking in learning or skill.
Despite his unlearned background, he showed great potential in his work.
Unlearned → It is formed from "un-" (meaning not) and "learned" (from Old English "leornian", meaning to acquire knowledge). The word "unlearned" describes someone who is not knowledgeable or lacking in education.
Think of 'not' ('un-') being added to 'learned' — this helps you remember that 'unlearned' means someone who is not knowledgeable.