Wordnet 3.0
NOUN (1)
1.
mercilessness characterized by an unwillingness to relent or let up;
- Example: "the relentlessness or their pursuit"[syn: relentlessness, inexorability, inexorableness]
The Collaborative International Dictionary of English v.0.48:
Inexorableness \In*ex"o*ra*ble*ness\, n.
The quality or state of being inexorable. --Chillingworth.
[1913 Webster]
WordNet (r) 3.0 (2006):
inexorableness
n 1: mercilessness characterized by an unwillingness to relent
or let up; "the relentlessness or their pursuit" [syn:
relentlessness, inexorability, inexorableness]