- The definition of third-rate is something that is low in quality.
An old run down hotel that isn't very nice and isn't really as nice as other hotels is an example of accommodations that would be described as third-rate.
third-rate definition by Webster's New World
- third in quality or other rating; third-class
- inferior; very poor
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- third-rater noun
third-rate definition by American Heritage Dictionary
Of third quality or value, especially of less quality or value than second-rate.