Explanation
The Correct Option is (a) Antagonistic.
Vocabulary Breakdown
To find the word most similar in meaning, we must define the root word:
Logical Analysis
We are looking for a Synonym—a word that conveys a sense of hostility or opposition.
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Antagonistic: Showing or feeling active opposition or hostility toward someone or something. This is the direct Synonym for Inimical.
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Anonymous: Describes a person whose name is not identified or made public. It is unrelated to hostility.
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Fanciful: Overly imaginative and unrealistic; existing only in the imagination. This does not share the meaning of harm or obstruction.
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Accurate: Correct in all details; exact. This is a positive trait unrelated to the core meaning of Inimical.
Conclusion
The relationship of similarity can be expressed using the following logic:
INIMICAL≈Hostile / Harmful
Synonym of INIMICAL≈Antagonistic
Therefore, the relationship is: