Definition of COLLOQUIAL
1
: of or relating to conversation : conversational
2
a : used in or characteristic of familiar and informal conversation; also : unacceptably informal
b : using conversational style
— colloquial noun
— col·lo·qui·al·i·ty noun
— col·lo·qui·al·ly adverb
See colloquial defined for English-language learners »
See colloquial defined for kids »
Examples of COLLOQUIAL
<the new coworker's rudeness soon began—to use a colloquial expression—to rub me the wrong way>
<a colloquial essay on what makes a marriage successful>
But I think part of this pickle that we're in—if I may be colloquial, even though I'm not running for office—is that we've lost their sense of responsibility. —Sarah Vowell, Entertainment Weekly, 24 Oct. 2008