Difficulty: Easy
Correct Answer: Opaque
Explanation:
Given data
Concept/Approach
The standard antonym in physical and figurative senses is ‘‘Opaque’’ = not letting light pass; not clear to understand.
Why the others are weaker
Semi-transparent: partial transparency; not opposite.Muddy: unclear or dirty; informal/approximate, but not the exact lexical antonym.Dark: low light; not a precise opposite of the property ‘‘transparent’’.
Final Answer
Opaque
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