Designed to protect against or block sunlight; having properties that prevent or reduce sun exposure.
From anti- (against) + sun. This is a modern compound formed in the 20th century, particularly with the rise of sunscreen and UV-protection technology in the latter half of the 1900s.
While 'antisun' sounds like science fiction, it reflects a real shift: for millennia, pale skin meant wealth and status (less sun exposure from outdoor labor), but after the 1920s, tanned skin became fashionable—leading to both sunbathing and the antisun products that eventually saved millions from skin cancer.
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