Select the most appropriate antonym of the given word.

Steep

Flat

The most appropriate antonym of the word steep is flat.

• Steep means "having a very high or sudden incline; almost vertical."
• Flat means "having a level or even surface; not sloping or inclined."

The other words do not have the same meaning as steep, so they are not its antonyms.

• Shallow means "having a relatively small depth."
• Rough means "not smooth or even; having a lot of bumps or irregularities."
• Narrow means "having a small width."