Synonyms of nonparticipating

1 Syllable

cool, calm

2 Syllables

neutral, inert, easy, aloof

3 Syllables

fair-minded, unbiased, detached, nonchalant, relaxed, collected, clinical, bystanding

4 Syllables

poker-faced, non-combatant, indifferent, impersonal, evenhanded, uninvolved, inactive, noncombatant, nonpartisan, nonaligned, uncommitted, middle-of-road, unconcerned, pacifistic, unaligned, disengaged, undecided

5 Syllables

disinterested, dispassionate, unprejudiced, nonbelligerent