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Difficulty: MediumAntonyms and Words Opposite in Meaning

Complete the sentence below by supplying a word opposite in meaning to the bold capitalized word.

Answer:Although the lead researcher presented a PERSPICUOUS argument in favor of the new hypothesis, the reviewing panel found the methodology to be 【obscure】 and difficult to interpret.

Answer

obscure (or vague / ambiguous / opaque / nebulous)
The word 'perspicuous' means clearly expressed, lucid, or easy to understand. The sentence opens with the contrast marker 'Although', indicating that while the argument was clear, the methodology was the opposite. Words such as 'obscure', 'vague', or 'ambiguous' express an absence of clarity and precisely serve as antonyms to 'perspicuous'.

Step-by-Step Solution

1
Determine the contextual meaning of the capitalized word 'PERSPICUOUS'.
'Perspicuous' means clearly expressed, lucid, and easy to understand.
Understanding the target vocabulary word is required to identify its opposite.
2
Analyze the sentence structure for contrast clues.
The subordinating conjunction 'Although' signals a contrast between the researcher's clear argument and the panel's perception of the methodology.
The missing word must convey an opposite quality to clarity to complete the contrast alongside 'difficult to interpret'.
3
Select an appropriate antonym.
Words such as 'obscure', 'vague', 'ambiguous', or 'opaque' mean unclear and difficult to perceive, providing the exact antonym required.
Inserting an antonym maintains the logical coherence of the sentence.

Key Concept

Contextual Antonyms
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Antonyms and Words Opposite in Meaning

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