Antonyms — Choose the option most nearly opposite in meaning to ‘‘TRANSPARENT’’ (visibility and clarity vs. opacity).

Given data

• Adjective: TRANSPARENT = allowing light to pass through; easily seen/understood
• Options: Semi-transparent; Muddy; Opaque; Dark

Concept/ApproachThe standard antonym in physical and figurative senses is ‘‘Opaque’’ = not letting light pass; not clear to understand.

Why the others are weakerSemi-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 AnswerOpaque