incontestability

English

Etymology

in- +‎ contestability

Noun

incontestability (countable and uncountable, plural incontestabilities)

1. The characteristic of being incontestable.
2. (law) In United States trademark law, the state of having been registered as a trademark for more than five consecutive years without a challenge, and therefore conclusively presumed not to cause confusion with any other trademark, and to have acquired distinctiveness.