From the given options choose the one which is opposite in meaning to the word given below 

BARREN

Fertile

The word that is opposite in meaning to barren is fertile.

• Barren means not producing or capable of producing offspring or fruit.
• Fertile means producing or able to produce abundantly.

The other options are not opposites of barren.

• Uncultivated means not tilled or cultivated.
• Forest means a large area of land covered with trees.
• Unlevelled means not level or even.