What does shatterproof mean?
Shatterproof is an adjective describing something designed to resist breaking into pieces when it is struck, dropped, or otherwise subjected to impact. It is especially associated with glass, but it can also describe plastic screens, protective films, containers, and other products. The word is often used in commercial descriptions and safety discussions, where it suggests durability and reduced danger from sharp fragments. Importantly, shatterproof is not necessarily the same as unbreakable: a shatterproof surface may still crack, scratch, or deform, but it is engineered to resist shattering or to remain safer if it does. In everyday use, the term communicates practical protection and toughness rather than absolute invulnerability. It is also useful because it distinguishes impact-resistant products from ordinary materials that may fail dangerously when damaged. The compound combines the idea of breaking into fragments with the suffix-like element “proof,” meaning resistant to a specified effect.
adjectiveDesigned or made to resist shattering, especially when struck, dropped, or subjected to impact. It is commonly used of glass, screens, plastics, and other materials that may crack without breaking into dangerous fragments.
- Resistant to shattering or breaking into fragments when subjected to impact.
"The phone is equipped with shatterproof glass to protect its display from accidental impacts."
"The installation uses shatterproof panels to protect visitors from broken glass."
"Campaigners called for the windows to be fitted with shatterproof film after the break-in."
Shatterproof does not mean indestructible: it means that, when something gives way, it is less likely to break into dangerous pieces.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does shatterproof come from?
Shatterproof is an English compound formed in the 19th century from “shatter” and “proof.” “Shatter” comes through Middle English from Germanic roots associated with breaking or scattering, while “proof” entered English through Old French from Latin probare, meaning to test or prove. The compound reflects the older English use of “proof” in compounds such as “fireproof” and “watertight,” meaning resistant to fire or water.
How shatterproof is actually used
Chiefly used as an attributive modifier before materials, products, windows, screens, and protective films. It is common in technical, commercial, and safety-related contexts, and it generally means resistant to shattering rather than absolutely impossible to break.
Easily confused with shatterproof
Shatterproof suggests a strong resistance to shattering, whereas shatter-resistant describes a material or product designed to reduce, but not necessarily eliminate, the risk of shattering.