Synonyms of cast-iron

cast-iron

adjective

1

as in strict

not allowing for any exceptions or loosening of standards

lost weight only after a cast-iron adherence to his diet

Synonyms & Similar Words

• strict
• rigorous
• rigid
• steadfast
• stringent
• uncompromising
• exacting
• inflexible
• brassbound
• adamant
• undeviating
• conscientious
• hard-line
• unbending
• meticulous
• stubborn
• adamantine
• punctilious
• immovable
• painstaking
• firm
• scrupulous
• relentless
• exact
• unflinching
• ironbound
• hardened
• unyielding
• implacable
• stern
• tenacious
• dogged
• flinty
• determined
• fussy
• close
• unrelenting
• tough
• resolved
• single-minded
• severe
• demanding
• unsparing
• grim
• harsh
• austere
• hard
• unappeasable
• hard-hearted

Antonyms & Near Antonyms

• flexible
• loose
• pliant
• lax
• pliable
• compliant
• slack
• soft
• yielding
• relaxed
• acquiescent
• gentle
• mild
• indulgent
• easy
• tolerant
• lenient
• merciful
• slipshod
• easygoing
• sloppy
• kindly
• compromising
• slovenly
• negligent
• remiss
• unfussy
• relenting
• neglectful
• pampering
• spoiling

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• flexible
• loose
• pliant
• lax
• pliable
• compliant
• slack
• soft
• yielding
• relaxed
• acquiescent
• gentle
• mild
• indulgent
• easy
• tolerant
• lenient
• merciful
• slipshod
• easygoing
• sloppy
• kindly
• compromising
• slovenly
• negligent
• remiss
• unfussy
• relenting
• neglectful
• pampering
• spoiling

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2

as in sturdy

able to withstand hardship, strain, or exposure

he has a cast-iron faith in his innate ability to overcome any adversity that life might throw against him

Synonyms & Similar Words

• sturdy
• hardy
• strong
• stout
• hardened
• rugged
• vigorous
• tough
• durable
• robust
• toughened
• permanent
• leathery
• hard-bitten
• staunch
• healthy
• hard
• flinty
• stalwart
• enduring
• inured
• muscular
• resilient
• stable
• unyielding
• everlasting
• brawny
• thriving
• lasting
• immortal
• tenacious
• fortified
• tempered
• strapping
• hale
• imperishable
• flourishing
• stanch
• virile
• sound
• staying
• fit
• seasoned
• prospering
• husky
• lusty
• annealed
• red-blooded
• able-bodied

Antonyms & Near Antonyms

• soft
• weak
• delicate
• tender
• worn
• diseased
• weakened
• fragile
• enfeebled
• unsound
• emasculated
• wasted
• infirm
• worn-out
• puny
• frail
• nonhardy
• exhausted
• temporary
• crippled
• incapacitated
• debilitated
• sensitive
• susceptible
• run-down
• vulnerable
• yielding
• resistless
• enervated
• transient
• sapped
• mortal
• perishable
• unresistant

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• soft
• weak
• delicate
• tender
• worn
• diseased
• weakened
• fragile
• enfeebled
• unsound
• emasculated
• wasted
• infirm
• worn-out
• puny
• frail
• nonhardy
• exhausted
• temporary
• crippled
• incapacitated
• debilitated
• sensitive
• susceptible
• run-down
• vulnerable
• yielding
• resistless
• enervated
• transient
• sapped
• mortal
• perishable
• unresistant

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