Question

The work is _____ his capacity.
Fill in.

Answer 1

The work is beyond his capacity.

Answer 2

Answer:

The answer is ‘The work is beneath his capacity.

Explanation:

Here the right word to fill in the blanks is 'beneath'. Beneath is both a preposition as well as an adverb.

Here the word beneath his capacity refers to some work which the person regards as below his capacity.  

Beneath one’s capacity may mean a social class or a capability. Similar phrases are beneath one’s dignity, beneath one’s ability.

When you say beneath one’s capacity, one means that he is superior in capacity than the work expected from him.