Dispassionately

He did his work methodically and dispassionately.

He worked methodically and dispassionately.

On November 18, 2011, the officer dispassionately pepper-sprayed a line of several nonviolent protesters sitting on the ground at the university, who flinched and covered their faces but remained passive with their arms interlocked, as onlookers shrieked and screamed out for the officer to stop.

He describes the untenable position of the railways' finances reasonably dispassionately. From 1952 onwards, British Railways ran an operational deficit, and in 1961 made an annual loss of £86.9 million.