Synonyms of unrelenting

unrelenting

adjective

ˌən-ri-ˈlen-tiŋ 

1

as in adamant

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

that professor tends to be unrelenting about deadlines

Synonyms & Similar Words

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

Antonyms & Near Antonyms

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

2

as in relentless

showing no signs of slackening or yielding in one's purpose

unrelenting in the pursuit of equality for all races

Synonyms & Similar Words

• relentless
• grim
• determined
• persistent
• implacable
• unflinching
• unyielding
• ruthless
• dogged
• unappeasable
• stubborn
• willful
• merciless
• hard
• tenacious
• obdurate
• uncooperative
• intractable
• mulish
• peevish
• unforgiving
• perverse
• persevering
• pertinacious
• opinionated
• headstrong
• hardheaded
• pigheaded
• self-willed

Antonyms & Near Antonyms

• softening
• yielding
• weak
• impotent
• slack
• slackening
• spineless
• invertebrate
• pliant
• complaisant
• pliable
• obliging

Example Sentences

Recent Examples of unrelenting

In conditions like this, the unrelenting heat, stress and smoke take a toll on firefighters’ bodies. — Julian L. Gallegos, The Conversation, 27 Aug. 2026

Remmick, Jimmy Crystal and Larry Lamb share an unrelenting desire to entertain, whether performing music outside a juke joint, indulging amusement with graphic violence or delighting the British reading public with scandal and drama. — Daniel D'addario, Variety, 26 Aug. 2026

The season three premiere brought viewers to the frontlines of the war in Ukraine in absolutely brutal and unrelenting fashion. — David Hookstead Outkick, FOXNews.com, 25 Aug. 2026

Since then, the land has sat mostly empty, occupied only by an unrelenting hum. — Lauren Fichten, CBS News, 25 Aug. 2026