noun
inexperience
in-ik-SPEER-ee-uns/ˌɪnɪkˈspɪriəns/
Lack of knowledge or skill gained through practice.
The beginner's inexperience shows as he struggles to center the clay.

Etymology
Experientia names knowledge gained by repeated trials, rather than knowledge in the abstract. The negative prefix marks a lack of that practical familiarity—the skill and understanding that doing something repeatedly brings.
In context
the commander blames the Bombardier for the crash landing owing to his inexperience as a navigator lowering team morale
More examples
- He overcame his inexperience by asking careful questions.
- The mistake reflected inexperience rather than carelessness.
- The instructor allowed for the students’ inexperience.
Forms
inexperience
inexperienced adjective — lacking practice
Similar words
- unfamiliarity
- Unfamiliarity is lack of knowledge of something; inexperience is lack of practical involvement or practice.
- incompetence
- Incompetence is inability to perform adequately; an inexperienced person may learn quickly and become capable.