shift one's ground

• shift ground

shift one's ground (third-person singular simple present shifts one's ground, present participle shifting one's ground, simple past and past participle shifted one's ground)

1. To change one's opinion in a way that contradicts what one has previously held.
   • 2024 April 3, “Network News: Fresh manager strikes at ScotRail”, in RAIL, number 1006, page 9:

     Since then, and after high-level in-person talks between ScotRail and TSSA General Secretary Maryam Eslamdoust, "the company has done nothing to suggest they are prepared to shift their ground", the union said.