implacability
NOUN
stubbornness
Synonyms
WEAK
adamancy
bullheadedness
contumacy
die-hardism
doggedness
grimness
implacableness
incompliance
incompliancy
indomitability
inexorability
inexorableness
inflexibility
inflexibleness
intransigence
intransigency
mulishness
obduracy
obdurateness
obstinacy
perseverance
pertinacity
pigheadedness
relentlessness
remorselessness
rigidity
rigidness
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.