I think you have to give the definitions that should be easy to find with a quick google search ;)
Repetitious. Those are synonyms, different words that have a similar or nearly identical meaning. Sullen and moody are adjectives that mean gloomy, morose, somber, resentful. Monotonous and repetitious are adjectives we use to signify that something is tedious, devoid of variations, dull.
Answer: can you be a little more specific?
Explanation:
Please