splinterproof

/ˈsplɪntərpruːf/
adjective
  1. Designed to resist splintering or to prevent splinters from forming.
    • The splinterproof glass in the car windows protected the passengers during the accident.
    • They used splinterproof plastic for the children's playground equipment.
    • The splinterproof handle of the hammer made it comfortable to use.
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