1. the quality or attitude of treating someone or something as unimportant, unworthy of consideration, or deserving of rejection
Usage: uncountable; often used to describe a negative interpersonal attitude

Examples

• Her dismissiveness toward his ideas made him feel unvalued at work.
• The coach's dismissiveness of the younger players' suggestions hurt team morale.
• I was struck by the dismissiveness in his tone when I asked for help.
• His dismissiveness about climate change concerns frustrated the environmental group.
• The dismissiveness of the review made the author question her abilities.
• She regretted her dismissiveness toward her friend's concerns.
• The dismissiveness displayed by the committee discouraged further participation.