Definition of third-rater in English:

third-rater

noun

  • See third-rate

    • ‘The cast was generally slated as being some third-raters.’
    • ‘I don't befriend second-raters or third-raters.’
    • ‘England have been improving under their new captain: they have gone from third-raters to second-raters.’
    • ‘He fought steadily and compiled an undefeated record against mostly third-raters.’