The quality or state of being concessive; the tendency or habit of acknowledging opposing viewpoints or making concessions.
From concessive plus the noun-forming suffix -ness, creating an abstract noun describing the characteristic or quality of being concessive.
A politician with high 'concessiveness' might alienate hardliners while winning moderates—it's the personality trait of the middle-ground player, someone who sees multiple sides but rarely commits fully to one.
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