Underbred a. : Not thoroughly bred; ill-bred; as, an underbred fellow.

Example:
What's your attitude towards this kind of behavior?

Taxonomy
dictionary, Encyclopedia, online dictionary, thesaurus browser, Free Online Dictionary, mixed breed, synonyms, antonyms, English dictionary, ill-bred, free online English dictionary, unrefined, Translations, law, explanation, Acronyms, Idioms, thoroughbred.

Defination from the web:
underbred in the Online Dictionary. Meaning of underbred. Pronunciation of underbred. Translations of underbred. underbred synonyms, underbred antonyms. ... and her resources, and all her airs of pert pretension and underbred finery. Emma by Austen, Jane View in context ...