hold back (verb) hold back: repress
Sinonime: aloof, bystanding, calm, clinical, collected, cool*, detached, disengaged, disinterested, dispassionate, easy, evenhanded, fair-minded,
impartial, impersonal, inactive, indifferent, inert, middle-of-road, neuter, nonbelligerent, nonchalant, noncombatant, nonparticipating, nonpartisan, on sidelines, on the fence, pacifistic, poker-faced, relaxed, unaligned, unbiased, uncommitted, unconcerned, undecided, uninvolved, unprejudiced