Synonyms of adamant

adamant

adjective

ˈa-də-mənt 

as in stubborn

sticking to an opinion, purpose, or course of action in spite of reason, arguments, or persuasion

remained adamant about getting the actor's autograph even after he had disappeared backstage

Synonyms & Similar Words

• stubborn
• steadfast
• hardened
• obsessive
• determined
• obdurate
• intransigent
• hard
• obstinate
• implacable
• opinionated
• willful
• uncompromising
• wilful
• unbending
• unyielding
• persistent
• strict
• bullheaded
• unrelenting
• headstrong
• adamantine
• hardheaded
• immovable
• mulish
• inflexible
• dogged
• pertinacious
• pigheaded
• relentless
• pat
• hard-nosed
• perverse
• ossified
• defiant
• iron
• self-willed
• inconvincible
• tenacious
• resolved
• stiff-necked
• rigid
• self-opinionated
• stern
• unflinching
• deaf to reason
• inexorable
• severe
• wrongheaded
• firm
• hard-line
• contrary
• wayward
• single-minded
• confirmed
• cantankerous
• uncooperative
• hell-bent
• stouthearted
• narrow-minded
• recalcitrant
• indomitable
• invincible
• hidebound
• intractable
• demanding
• disobedient
• anal-retentive
• bloody-minded
• mutinous
• contumacious
• unmanageable
• hard-shell
• set
• unruly
• insubordinate
• unconquerable
• inveterate
• refractory
• cussed
• ungovernable
• exacting
• hard-shelled
• froward
• insurgent
• unregenerate

Antonyms & Near Antonyms

• amenable
• flexible
• complying
• compliant
• agreeable
• acquiescent
• pliable
• pliant
• obedient
• docile
• willing
• receptive
• yielding
• submissive
• accepting
• responsive
• tractable
• reasonable
• relenting
• manageable
• placable
• temperate
• persuadable
• subservient
• slavish
• governable

Synonym Chooser

How is the word adamant different from other adjectives like it?

The words inflexible and obdurate are common synonyms of adamant. While all three words mean "unwilling to alter a predetermined course or purpose," adamant implies utter immovability in the face of all temptation or entreaty.

adamant that the work should continue

When is it sensible to use inflexible instead of adamant?

The words inflexible and adamant can be used in similar contexts, but inflexible implies rigid adherence or even slavish conformity to principle.

inflexible in their demands

When could obdurate be used to replace adamant?

The words obdurate and adamant are synonyms, but do differ in nuance. Specifically, obdurate stresses hardness of heart and insensitivity to appeals for mercy or the influence of divine grace.

obdurate in his refusal to grant clemency

Example Sentences

Recent Examples of adamant

The Browns and Haslam Sports Group, headed by team owners Jimmy and Dee Haslam, had been adamant that there was no suitable location within city limits and had been confident they’d eventually be cleared to move. —Zac Jackson, New York Times, 25 June 2025

Brooke is adamant that there was no practical reason for the tree’s removal. —Ashley Vega, People.com, 23 June 2025

But several prosecution witnesses remain adamant that Read is guilty — a claim that underlies the civil complaint. —Flint McColgan, Boston Herald, 20 June 2025

Football has typically accepted these lapses and quietly moved on, adamant that the use of performance-enhancing drugs (PED) is primarily a problem for other sports. —Philip Buckingham, New York Times, 20 June 2025