The antonym for the word incompetence is expertise.
Step-by-step explanation:
The word incompetence is known as a Lack of legitimate capacity to accomplish something, particularly to affirm or stand preliminary. It is otherwise called a preclusion, failure, or unfitness.
For Example, He is too incompetent to be in any way trusted with such a significant duty. His incompetent acting demolished the play. The defendant was declared incompetent to stand trial.
So the antonym for the word inadequacy is aptitude. The meaning of ability is propelled information or aptitude. The undertakings that you normally progress admirably, abilities and qualities that you bring to the table as an understudy and additionally worker.