Final answer:
A suitable antonym for 'crude' is 'refined'.
Step-by-step explanation:
A suitable antonym for 'crude’ is 'refined'.Refined means showing good manners, sophistication, or cultural knowledge. It is the opposite of crude, which means lacking elegance or sophistication.For example, if someone makes a crude comment, it is considered rude and lacking in good taste. On the other hand, a refined remark is polite and well-spoken.