Select the most appropriate synonym for the given word.
MALADY

perennial (adjective)
The correct answer is Option 4 i.e. Illness.
Malady means “a disease or ailment.”
Let us look at the meanings of the given words:
Mischief: a disease or period of sickness affecting the body or mind
Wickedness: the quality of being evil or morally wrong
Disturbance: the interruption of a settled and peaceful condition
Illness: (of a thing) not of the necessary quality or standard to meet a particular purpose
Hence, only the word Illness is the synonym of Malady.