nonwaterproof

Nonwaterproof refers to materials or products that are not designed or treated to resist the penetration or damage of water. When exposed to water, nonwaterproof items are likely to absorb moisture, lose their structural integrity, change their appearance, or become damaged. This can range from simple discoloration or weakening of paper to more significant degradation of electronics or fabrics.

Many common items are nonwaterproof by default. For example, most types of paper will become soft and tear easily when wet, and many fabrics will absorb water, becoming heavier and potentially developing mildew if not dried properly. Wooden objects can swell, warp, or rot if left in damp conditions. Electronics, especially those with exposed circuits or ports, are highly susceptible to damage from water, which can cause short circuits and corrosion.

The lack of water resistance means that such items require protection from moisture to maintain their function and lifespan. This might involve storing them in dry environments, using protective coverings, or avoiding exposure to rain, spills, or high humidity. The term is often used in contrast to "waterproof" or "water-resistant," which describe materials specifically engineered to repel or withstand water to varying degrees. Understanding whether a product is nonwaterproof is crucial for its proper care and handling.