cold-shoulder

cold-shoulder (third-person singular simple present cold-shoulders, present participle cold-shouldering, simple past and past participle cold-shouldered)

1. To disrespect someone, especially by ignoring them.
   • 2006, Michel Faber, The Apple, Canongate Books, page 23:

     If the peculiar Mr Heaton had first accosted her yesterday instead of six weeks ago, she would have cold-shouldered him without hesitation.

• cold shoulder