It is the lack of knowledge, skills and abilities. It is due to lack of study, dedication and lack of experience. Condition and quality of the wise or knowledgeable.
Lack of information or knowledge in general, or on a particular topic.
Ignorance: State of lacking awareness of information or reasonable knowledge. Negligence in the concept or presentation of topics or indeterminate cases. Lack of care; indifference or neglect of the deserved attention.