What does lacking knowledge mean?

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Tags

1. #particular
2. #untaught
3. #origin
4. #subject
5. #uninstructed
6. #illiterate
7. #little
8. #dangerous
9. #person
10. #knowing
11. #uneducated
12. #unlettered
13. #about
14. #ignorant
15. #untutored
16. #training
17. #lacking
18. #knowledge
19. #uninformed
20. #nothing