Run-flat

adj, noun

adj, noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A pneumatic tire designed to resist the effects of deflation when punctured, and to allow the vehicle to continue to be driven (although usually at a reduced speed).
Adjective
  1. 1
    Of a pneumatic tire, designed to resist the effects of deflation when punctured, and to allow the vehicle to continue to be driven (although usually at a reduced speed). not-comparable

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.