Select the option that is NOT an antonym of another word by way of adding the prefix

‘mis-‘.

The correct answer is 'Miserable'.

 Key Points

• The given task is to identify the word that is NOT an antonym by adding the prefix 'mis-'.
• Option 1: "Misappropriate" means to dishonestly take something for one's own use, which can be seen as the antonym of "appropriate".
• Option 2: "Misbehave" means to behave badly, which can be seen as the antonym of "behave".
• Option 3: "Misapprehend" means to misunderstand something, which can be seen as the antonym of "apprehend" (when 'apprehend' is used in the sense of understanding).
• Option 4: "Miserable" does not have this relationship. The root word 'erable' is not an existing word, and 'miserable' itself doesn't stand as an antonym to any real word when prefixed with 'mis-'.

Therefore, the correct answer is: 'Option 4'. i.e., 'Miserable'.