RichThesaurus
cast iron
cast iron
(adj)
synonyms
tough
iron
ironbound
unbreakable
ironlike
ferrous
rugged
endurable
innocuous
hardy
irony
beefy
inerrant
strengthy
steely
steel
steelen
unbending
spartan
dull
irremovable
incurable
inarguable
perseverant
lost
unescapable
bodacious
solid
robust
impervious
ironclad
undauntable
taut
ferric
nonweak
univocal
fierce
undeniable
unassailable
harmless
unpreventable
invulnerable
hard as nails
dead
firm
slight
inerrable
hard-ass
impenetrable
stout
bouncing
trick
muscular
stiff
impreventable
unflinching
brave
hefty
certain
spasmodic
apodictic
tenable
inviolable
unalterable
waterproof
avoidless
good
repellent
equable
substantial
potent
stouthearted
uncertain
sour
intrepid
level
trig
sure
unconquerable
untottering
stuffy
demanding
spirited
down
brittle
waspish
indurate
unclean
unsteady
irretrievable
contingent
necessary
adamantine
valiant
unreconcilable
ordinary
perverse
low
sturdy
frosty
impregnable
smooth
buirdly
evil
unfailing
steadfast
innocent
tottering
dogged
unrelenting
strong-handed
precarious
strenuous
implacable
hearty
starch
cogent
chalybeate
noxious
hollow
powerful
bold
muscly
mean
asleep
unconscionable
valid
staunch
criminal
venturesome
desperate
indomitable
brawny
forcible
substantive
crippling
abhorrent
unabated
unshakable
strident
able-bodied
safe
hard-nosed
deadpan
dynamic
mettlesome
inescapable
easy
remorseless
rock hard
ballsy
patient
undoubtable
gutsy
irreconcilable
ineludible
persevering
daring
sinewy
relentless
wild
sanguine
radical
sensitive
immovable
grim
compulsive
intolerable
stately
manly
starched
awkward
weak
incontestable
dedicated
involuntary
inevitable
punchy
hard
pertinacious
unpacifiable
improper
inexorable
hardened
axiomatic
ineluctable
indestructible
fast
bulletproof
fail
audacious
artificial
mug
diuturnal
earnest
stalwart
noisome
unmitigated
strong
huge
cast iron
definitions
adj
Inflexible or without exception.
Made of cast iron.
Durable; tough; resilient.
adj
noun