unmarkable

the unmarkable surface of the new whiteboard frustrated the markers.

many insects have unmarkable camouflage that helps them hide from predators.

the security features include an unmarkable tag that cannot be removed or altered.

artists often prefer unmarkable paints for outdoor murals.

the unmarkable nature of certain synthetic fabrics makes them ideal for sportswear.

some counterfeit prevention systems use unmarkable ink that only appears under uv light.

the archaeologist discovered an unmarkable stone tablet that defied all attempts at inscription.

due to its unmarkable surface, the material is perfect for reusable writing surfaces.

the spy used unmarkable paper that would disintegrate if handled improperly.

certain metals have an unmarkable oxide layer that protects them from corrosion.

the prison uniforms are made from unmarkable fabric to prevent gang identification.

forensic experts found the unmarkable evidence difficult to trace.

modern passports contain unmarkable security features to prevent forgery.