The correct answer is: momentary.
Success is a feeling of accomplishment or satisfaction that comes from achieving a goal. It can be a powerful motivator, and it can lead to other positive outcomes, such as increased confidence and self-esteem. However, success is not always permanent. It can be fleeting, and it can be easily lost. This is why the word “momentary” is the best answer to the question.
The other options are not as accurate. The word “mordant” means bitter or harsh. This does not accurately describe the feeling of success. The word “monotonous” means repetitive or boring. This does not accurately describe the feeling of success, which is often exciting and rewarding. The word “momentous” means important or significant. This is a good word to describe success, but it is not the best answer to the question because it does not capture the fleeting nature of success.
In conclusion, the correct answer to the question “Success gives only . . . . . . . pleasure” is “momentary.” This is because success is a feeling of accomplishment or satisfaction that comes from achieving a goal, and it can be fleeting.