On 23 February 2019, Adams sealed a Six Nations third round win for Wales against England at the Cardiff's Millennium Stadium. A cross field kick from Welsh teammate Dan Biggar was gathered in the air by Adams and grounded. It was Adam's third try for Wales and meant England were all but defeated in the match. With Wales moving to first, heading into the fourth week of the 2019 Six Nations Championship. Wales won the Six Nations grand slam.