adamant
adamantine
cast-iron
close
dour
firm
flinty
grim
hard
hard-core
immovable
immutable
implacable
impliable
inductile
inelastic
inexorable
inextensible
inextensile
inextensional
inflexible
intractable
intractile
intransigent
iron
irreconcilable
irresilient
mean
miserly
niggardly
nonelastic
nonstretchable
parsimonious
penurious
relentless
rigid
rigorous
rock-ribbed
save-all
steely
stern
stiff
stubborn
tight
tightfisted
unaffected
unalterable
unbending
unchangeable
uncompromising
bloodshed
chitonous
console-based
design/culture
ego-driven
establishingregular
hollow-hearted
incompliant
lipless
longhornblogs'
motive
overambitious
pre-programmed
prescriptive
second-most
self-indulged
unhospitable
unmediated
untired
vulgar-minded
war-mongering