Implacable

//ɪmˈplækəb(ə)l//

Synonyms for "implacable" (73 found)

Ranked by relevance and common usage.

Closest matches (15)

unappeasable adamant adamantine avenging cast-iron cruel deadly dour fell ferocious firm flinty grim grudgeful hard

Strong matches (22)

Related words (36)

Related word relations

OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.

5 relation types

Antonyms

1 entries

placable

Related terms

5 entries

placability placable placableness placably unplacable

derived

3 entries

implacability implacableness implacably

related to

10 entries

able adamant appease immovable impossible inexorable merciless placate prevent unstoppable

similar

12 entries

grim inexorable merciless relentless stern unappeasable unforgiving unmerciful unmitigable unrelenting

Translations

64 translations across 29 languages.

Ancient Greek

2 entries

ἄθελκτος adj (not able to be placated or appeased)
ἄσπονδος adj (not able to be placated or appeased)

Azerbaijani

1 entries

barışmaz adj (not able to be placated or appeased)

Bulgarian

3 entries

жесток adj (impossible to prevent or stop — see also inexorable, unstoppable)
непреклонен adj (adamant; immovable — see also adamant, immovable)
неумолим adj (not able to be placated or appeased)

Catalan

1 entries

implacable adj (not able to be placated or appeased)

Czech

3 entries

nesmiřitelný adj (not able to be placated or appeased)
neuklidnitelný adj (not able to be placated or appeased)
neutišitelný adj (not able to be placated or appeased)

Danish

1 entries

stædig adj (adamant; immovable — see also adamant, immovable)

Dutch

1 entries

onverzoenlijk adj (not able to be placated or appeased)

Finnish

1 entries

leppymätön adj (not able to be placated or appeased)

French

2 entries

implacable adj (impossible to prevent or stop — see also inexorable, unstoppable)
irréductible adj (impossible to prevent or stop — see also inexorable, unstoppable)

Georgian

2 entries

შეუბრალებელი adj (not able to be placated or appeased)
შეუბრალებელი adj (impossible to prevent or stop — see also inexorable, unstoppable)

German

2 entries

unerbittlich adj (adamant; immovable — see also adamant, immovable)
unversöhnlich adj (not able to be placated or appeased)

Gothic

1 entries

𐌿𐌽𐌷𐌿𐌽𐍃𐌻𐌰𐌲𐍃 adj (not able to be placated or appeased)

Greek

4 entries

αδυσώπητη adj (impossible to prevent or stop — see also inexorable, unstoppable)
αδυσώπητος adj (not able to be placated or appeased)
αδυσώπητος adj (impossible to prevent or stop — see also inexorable, unstoppable)
αμείλικτος adj (not able to be placated or appeased)

Hungarian

2 entries

engesztelhetetlen adj (not able to be placated or appeased)
kérlelhetetlen adj (adamant; immovable — see also adamant, immovable)

Italian

2 entries

implacabile adj (not able to be placated or appeased)
implacabile adj (impossible to prevent or stop — see also inexorable, unstoppable)

Latin

2 entries

implācābile adj (not able to be placated or appeased)
implācābilis adj (not able to be placated or appeased)

Manx

2 entries

neuveeinagh adj (not able to be placated or appeased)
neuveeinagh adj (impossible to prevent or stop — see also inexorable, unstoppable)

Middle English

1 entries

implācāble adj (not able to be placated or appeased)

Māori

1 entries

kaikiko adj (not able to be placated or appeased)

Norwegian

1 entries

uforsonlig adj (not able to be placated or appeased)

Persian

2 entries

آشتی ناپذیر adj (not able to be placated or appeased)
رام نشدنی adj (not able to be placated or appeased)

Polish

1 entries

nieubłagany adj (not able to be placated or appeased)

Portuguese

1 entries

implacável adj (not able to be placated or appeased)

Romanian

4 entries

de neclintit adj (adamant; immovable — see also adamant, immovable)
ferm adj (adamant; immovable — see also adamant, immovable)
imobil adj (adamant; immovable — see also adamant, immovable)
implacabil adj (not able to be placated or appeased)

Russian

4 entries

закля́тый adj (not able to be placated or appeased)
непрекло́нный adj (adamant; immovable — see also adamant, immovable)
непримири́мый adj (not able to be placated or appeased)
несдвига́емый adj (adamant; immovable — see also adamant, immovable)

Spanish

4 entries

implacable adj (not able to be placated or appeased)
implacable adj (impossible to prevent or stop — see also inexorable, unstoppable)
implacable adj (adamant; immovable — see also adamant, immovable)
tenaz adj (adamant; immovable — see also adamant, immovable)

Swedish

1 entries

enveten adj (adamant; immovable — see also adamant, immovable)

Turkish

1 entries

yatıştırılamaz adj (not able to be placated or appeased)

Ukrainian

4 entries

невблаганний adj (impossible to prevent or stop — see also inexorable, unstoppable)
непримире́нний adj (not able to be placated or appeased)
непримире́нний adj (impossible to prevent or stop — see also inexorable, unstoppable)
непримири́мий adj (not able to be placated or appeased)

Sample sentences

10 total sentences available.

Tatoeba + Wiktionary

I cannot understand the implacable hatred that he still feels for his old rival.

Source: tatoeba (4032603)

Tom is implacable.

Source: tatoeba (8788727)

The military regime launched implacable repression on all democratic forces, political, social and union, with the aim of subduing the population through state terror.

Source: tatoeba (10199790)

The man acquiesced, but the woman remained implacable.

Source: tatoeba (11875897)

Showing 4 of 10 available sentences.

More for "implacable"

Meaning Antonyms Sentences Word Type

Keep exploring

Compare antonyms Use in sentences Read the blog

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.