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
• unbending
• unyielding
• persistent
• bullheaded
• strict
• unrelenting
• headstrong
• adamantine
• hardheaded
• immovable
• mulish
• inflexible
• dogged
• pertinacious
• pigheaded
• relentless
• pat
• hard-nosed
• perverse
• ossified
• iron
• defiant
• self-willed
• inconvincible
• tenacious
• stiff-necked
• resolved
• 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
• 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

But Rojas was adamant about playing Wednesday. —Assistant Sports Editor, Los Angeles Times, 10 Apr. 2026

Adelman was adamant his team was playing well before the streak even started brewing. —Bennett Durando, Denver Post, 9 Apr. 2026

Regardless of the growing cottage industry of code-review systems, Kang, of the University of Illinois, is adamant that coders — new and old — can guard their systems against code slop by embracing age-old cybersecurity fundamentals. —Jared Perlo, NBC news, 7 Apr. 2026

While Chicago is at no imminent risk of instituting Johnson’s jobs tax following the City Council’s adamant rejection, Springfield ought to make the possibility of a later revival of that policy a dead letter. —The Editorial Board, Chicago Tribune, 7 Apr. 2026