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implacable

implacable

9 8.6
Not able to be calmed and showing firm, unchanging anger or opposition
  • adjective
  • /ɪmˈplækəbl/
  • Formal
translation icon : implacable
  • The younger girl looked hard now, implacable, and that was something Eddie was not accustomed to seeing.
  • an implacable enemy
  • implacable hostility
  • an implacable foe

They just make brief patterns in it, inch by inch, implacable as a glacier and far colder.

Examples

  • He fell to his knees and pleaded for his life, but I was implacable.

  • I have negotiated peace treaties between implacable enemies.

  • Instead, he gets a determined and implacable look on his face.

    Fiction book (1997)
  • The present king is our implacable opponent.

  • Any attempt on Brandon's part to discipline the boys had met with implacable resistance from their mother.

    Fiction book (2000)
  • The reluctant U.S. interventionism of the 1990s made no headway against this implacable enemy.

    Academic text (2002)
  • Israel's struggles against its implacable opponents also touch many responsive chords around the world.

    Academic text (2013)
  • The community faced implacable opposition to the proposed changes.

  • Despite their efforts, the rivalries remained implacable and showed no signs of resolution.

  • Her implacable determination led her to win the competition against all odds.

Synonyms

relentless
vsimplacable
131 5.1

Keeps going without stopping and stays very strong

adds angry opposition and inability to be pacified rather than mere continuing pressure
persistent
vsimplacable
43 4.4

Continuing with an action despite problems or opposition

contains angry refusal to be appeased rather than only long continued effort
unrelenting
vsimplacable
28 7.0

Not stopping and not getting less strong

adds hostile refusal to make peace rather than only ongoing severity
unwavering
vsimplacable
22 5.8

Being firm in belief or support that does not change

involves angry opposition and refusal to be placated rather than steady support
stubborn
vsimplacable
16 3.3

Hard to remove or cure even after trying

expresses angry unwillingness to be pacified rather than mere difficulty to change
inexorable
vsimplacable
  • Formal
11 8.6

Impossible to stop or change

adds angry unwillingness to forgive not only unstoppable continuation
unyielding
vsimplacable
10 6.5

Very firm in decisions and not willing to change or give up

implies active hostility and refusal to be pacified rather than mere firmness
unshakable
vsimplacable
  • US
8 4.8

Very strong belief or feeling that cannot be changed

focuses on angry refusal rather than only firm certainty
unbendable
vsimplacable
1 7.0

Not willing to change your mind even under pressure

carries angry hostility and refuses to be appeased rather than only firm resolve
unswayable
vsimplacable
8.7

A person who does not change their opinion when others try to persuade them

expresses angry refusal to be calmed not just opinionated firmness
undeterrable
vsimplacable
9.0

Someone or something that keeps going despite attempts to stop it

adds hostile refusal to reconcile rather than only being hard to stop

Antonyms

8.8

Calms down easily and forgives others quickly

Able to be calmed by kind words or actions

How Relentless

ruthless
152 4.9
implacable
  • Formal
9 8.6
unforgiving
35 5.8
stern
42 4.3
firm
73 2.7
lenient
32 4.4
tolerant
72 3.2

Surface Forms

implacable positive
implacabler comparative
implacablest superlative

Morphology

implacable = placable (semi-transparent) = im + plac + able

The adjective is formed by prefixing 'im-' to 'placable' in a regular way, but 'placable' (and the root 'plac') is relatively uncommon, so the negated meaning is only partly obvious to learners who do not know 'placate'/'placable'.

Etymology

Implacable comes from Latin parts im- meaning 'not' and placare meaning 'to calm', the same root you see in placate. So an implacable person or enemy is 'not calmable' and cannot be made peaceful.