Choose the word that is most opposite in meaning to the highlighted word.

OBSCURE

The correct answer is Apparent.

1. Meaning of the Highlighted Word:
The word OBSCURE means not clearly expressed, hard to understand, hidden, or uncertain.

2. Goal:
The question asks for the word that is most opposite in meaning (antonym) to OBSCURE.

3. Analysis of the Options:
• Ambiguous: Means open to more than one interpretation or unclear. This is a synonym of obscure.
• Vague: Means uncertain, indefinite, or unspecific. This is also a synonym of obscure.
• Apparent: Means clearly visible, obvious, or easy to perceive and understand. This is the direct opposite (antonym) of obscure.
• Arcane: Means mysterious, secret, or understood by very few. This is similar in meaning to obscure.

Therefore, Apparent is the word most opposite in meaning to OBSCURE.