Showing indifference or disregard: a dismissive shrug. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "dismissive" in a sentence
"Georgiana nodded to one corner, her expression dismissive."
"The Clinton group problems, teamed with what she calls the dismissive or at best distracted air that characterized communications with the Facebook staff, fueled her fears."
"Mr. Layton also took a strip off Mr. Harper for what he described as a dismissive and disdainful attitude towards workers who have lost their jobs."