Select the most appropriate antonym of the underlined word in the given sentence.

The university dean delivered an eloquent speech during the graduation ceremony.

The correct option is Inarticulate.

Explanation:
The word eloquent refers to someone who is fluent, persuasive, and articulate in speech or writing.
The antonym (opposite in meaning) of eloquent is inarticulate, which means unable to express oneself clearly or effectively.

Option Breakdown:
• Expressive: Conveying thoughts or feelings effectively (Synonym).
• Inarticulate: Unable to speak distinctly or express ideas clearly (Antonym).
• Coherent: Logical, clear, and consistent.
• Persuasive: Capable of convincing others through reasoning or speech (Synonym).