Adverb
In a supercilious, disdainful, or haughty manner; arrogantly.
Source: Webster's dictionaryThose who cavalierly reject the Theory of Evolution, as not adequately supported by facts, seem quite to forget that their own theory it supported by no facts at all. Herbert Spencer
Groups like the NAACP, The Anti-Defamation League, NOW and GLAAD, will respond to derisive language directed at their constituents. The price paid by those who cavalierly chose to verbally disrespect the dignity of African Americans, Jews, women and homosexuals is steep. John C. McGinley
Significant officials at publicly traded companies are casually and cavalierly engaged in insider trading. Because insider trading has as one of its elements communication, it doesn't take rocket science to realize it's nice to have the communication on tape. Preet Bharara
he treated his staff cavalierly Source: Internet
And when White House press secretary Kayleigh McEnany was pressed on Fox Business about whether Trump would attend the inauguration in January, she cavalierly replied: “I think the President will attend his own inauguration. Source: Internet
But, in the morning after, some folks were still scratching their heads that Justice Holder would issue an injunction in a matter that’s riveted the attention of the world (only slight hyperbole!) so cavalierly! Source: Internet