Mature Pinyin: chéng shú.

Explanation: the growth of fruits or grains to the point where they are ready to be harvested, and also a metaphor for things reaching a stage of full growth, to the point where they are close to perfection.

Near synonyms: seasoned, sophisticated.

Antonyms: childish, tender, infantile, youthful.

Mature sentence.

A person can only mature after a thousand refinements.

The trials and tribulations of life matured the boy prematurely.

My opinion is so immature that I dare not speak it for fear of making a fool of myself.

Fall came, and my favorite apples were ripening.

The ripening wheat hangs low, that is teaching us humility.

To think of danger in times of peace is also a sign of a nation's maturity.

The crops are ripe and the villagers are busy with the summer harvest.

As we enter June, wheat is ripening, and the land is golden.