indifferent
detached
determined
irrelevant
Answer is Right!
Answer is Wrong!
The correct answer is D. irrelevant.
Pertinent means relevant or applicable to the matter at hand. Irrelevant means not relevant or applicable to the matter at hand.
A. Indifferent means not interested or concerned.
B. Detached means emotionally uninvolved.
C. Determined means having a firm intention to do or achieve something.
All of these words have different meanings than pertinent. Only irrelevant is the opposite of pertinent.