Difficulty: Easy
Correct Answer: clandestine
Explanation:
Given data
Concept/Approach
Clandestine means kept secret, especially for illicit purposes. It strongly collocates with affair (“a clandestine affair”).
Option analysis
clandestine — correct; commonly used for secret relationships. ✅covert — hidden/concealed in general, but the fixed collocation “covert affair” is less idiomatic than “clandestine affair.”unknown — merely “not known”; weaker and not idiomatic with “affair.”candid — frank/open; the opposite of secret.
Common pitfalls
Final Answer
clandestine
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