1. opposed to or contrary to nature; not in accordance with natural laws or processes
Usage: formal or literary; often used in philosophical or ethical contexts

Examples

• The philosopher argued that the practice was antinatural and violated fundamental principles of human existence.
• Some critics view the technology as antinatural because it interferes with biological processes.
• The antinatural elements in the artwork challenged viewers' expectations of beauty.
• He believed that suppressing emotions was antinatural and psychologically harmful.
• The antinatural compounds in the soil prevented normal plant growth.