Definition of underbred in English:

underbred

adjective

dated
  • Bad-mannered; rude.

    • ‘Are you who that rude, underbred soldier was looking for?’
    ill-mannered, bad-mannered, impolite, discourteous, impertinent, insolent, impudent, cheeky, audacious, presumptuous, uncivil, disrespectful, unmannerly, ill-bred, churlish, crass, curt, brusque, blunt, ungracious, graceless, brash, unpleasant, disagreeable, offhand, short, sharp
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Pronunciation:

underbred

/ʌndəˈbrɛd/