Question

which word is an antonym for the word keen?
the detective is keen to find clues to solve the mystery.
uninterested
daring
ashamed
unlikely

Explanation:

To find the antonym of "keen", we first determine the meaning of "keen" from the sentence: the detective is eager or interested to find clues. An antonym would be a word with the opposite meaning. "Uninterested" means having no interest, which is the opposite of being keen (eager/interested). "Daring" relates to courage, "ashamed" to embarrassment, and "unlikely" to probability, none of which are opposites of "keen".

Answer:

A. uninterested