English edit

Etymology edit

under- +‎ inflate

Verb edit

underinflate (third-person singular simple present underinflates, present participle underinflating, simple past and past participle underinflated)

  1. (transitive) To inflate too little.
    • 2007 February 18, “Letters”, in New York Times[1]:
      Maybe the tire could emit the scent whenever it is underinflated — after all, a car with properly inflated tires gets the best gasoline mileage.

Antonyms edit