inexorableness n 1: mercilessness characterized by an unwillingness to relent or let up; "the relentlessness or their pursuit" [syn: {relentlessness}, {inexorability}, {inexorableness}]
Inexorableness \In*ex"o*ra*ble*ness\, n. The quality or state of being inexorable. --Chillingworth. [1913 Webster]