Explanation:

- The phrase "using high-sounding words but with little meaning" describes speech or writing that's inflated and pretentious.

- Option 1: Bombastic

- Meaning: Using elaborate language that is inflated and often lacking in meaning or sincerity.

- This matches the given phrase perfectly.

- Correct Answer

- Option 2: Eloquent

- Meaning: Fluent and persuasive in speaking or writing.

- This is not inherently high-sounding with little meaning.

- Option 3: Clever

- Meaning: Quick to understand, learn, or devise ideas; intelligent.

- Doesn't relate to language usage or pretentiousness.

- Option 4: Reserved

- Meaning: Slow to reveal emotion or opinions; restrained.

- This is about personality, not speech style.