1. Which word is antonym of incessant?

failing, brief or filthy

brief

Right.

To find the antonym of a word, you can rely on your knowledge of language or use a thesaurus. In this case, you can determine the antonym of "incessant" by understanding its meaning. "Incessant" means something that is continuous, constant, or unceasing. The antonym is a word that means the opposite, indicating something that is not continuous or brief in duration.

By looking at the given options, "failing" and "filthy" do not convey the opposite meaning of "incessant." However, "brief" represents the opposite sense, as it means something that is short, concise, or of limited duration. Therefore, the antonym of "incessant" among the given options is "brief."