Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Thesaurus

implacable

adjective

Synonyms and Antonyms of implacable

  1. 1 sticking to an opinion, purpose, or course of action in spite of reason, arguments, or persuasion <an implacable judge who knew in his bones that the cover-up extended to the highest levels of government> Synonyms adamant, adamantine, bullheaded, dogged, hard, hardened, hardheaded, hard-nosed, headstrong, immovable, obstinate, inconvincible, inflexible, intransigent, mulish, obdurate, opinionated, ossified, pat, pertinacious, perverse, pigheaded, self-opinionated, self-willed, stiff-necked, stubborn, unbending, uncompromising, unrelenting, unyielding, willful (or wilful)Related Words anal-retentive, obsessive; wayward, wrongheaded; determined, hell-bent, inexorable, persistent, relentless, resolved, set, single-minded, steadfast, stouthearted, tenacious, unflinching; firm, hard-line, hard-shell (or hard-shelled), iron, severe, stern, strict; hidebound, narrow-minded, rigid; bloody-minded [chiefly British], cantankerous; contrary, cussed; contumacious, disobedient, froward, insubordinate, intractable, recalcitrant, refractory, uncooperative, ungovernable, unmanageable, unruly; defiant, insurgent, mutinous; indomitable, invincible, unconquerable; confirmed, inveterate, unregenerate; demanding, exactingNear Antonyms docile, obedient, placable, submissive, tractable; accepting, persuadable, receptive, responsive, willing; governable, manageable, reasonable, temperate; slavish, subservientAntonyms acquiescent, agreeable, amenable, compliant, complying, flexible, pliable, pliant, relenting, yielding

  2. 2 showing no signs of slackening or yielding in one's purpose <an implacable dedication to the proposition that everyone is entitled to a quality education> Synonyms determined, dogged, grim, unyielding, relentless, unappeasable, unflinching, unrelentingRelated Words persevering, persistent, tenacious; hard, hardheaded, headstrong, intractable, mulish, obdurate, opinionated, peevish, pertinacious, perverse, pigheaded, self-willed, stubborn, uncooperative, willful (or wilful); merciless, ruthless, unforgivingNear Antonyms slackening, softening, yielding; impotent, invertebrate, slack, spineless, weak; complaisant, obliging, pliable, pliant





Seen and Heard

What made you want to look up implacable? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

February 6, 2016

an official order, decree, or edict

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

pince-nez spindrift duvet kittly-benders
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ