adj · 4 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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Received-Pronunciation:/ɪmˈplækəb(ə)l/
Received-Pronunciation:/-ˈpleɪ-/
Southern-England:Recorded audio is listed in the source snapshot.
General-American:/ɪmˈplækəbəl/
US:Recorded audio is listed in the source snapshot.
CMU ARPABET:IH2 M P L AE1 K AH0 B AH0 L
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
adj
Meaning 1
Not able to be placated or appeased.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Impossible to prevent or stop; inexorable, unrelenting, unstoppable.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: relentless, unremitting, unyielding
Antonyms: none provided
3
adj
Meaning 3
Adamant; immovable.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
adjective
Meaning 4
incapable of being placated
Definition source: Princeton WordNet 3.0
Examples
an implacable enemy
Meaning relationships
Synonyms: none provided
Antonyms: placable
History
Etymology
From Middle English implācāble (“immitigable, unappeasable”) from Old French implacable (“harsh, unrelenting; implacable”) (modern French implacable), from Latin implācābilis (“unappeasable, implacable; irreconcilable”), from im- (variant of in- (prefix meaning ‘not’)) + plācābilis (“placable; appeasing, moderating, pacifying, propitiating; acceptable”) (from plācō (“to assuage, pacify, placate; to appease; to reconcile”) + -bilis (suffix forming adjectives indicating a capacity or worth of being acted upon)).
Across languages
Translations
65 source translations are retained for this English entry.
Azerbaijani:
barışmaz
— not able to be placated or appeased
Bulgarian:
неумолим
(neumolim)
— not able to be placated or appeased
Catalan:
implacable
— not able to be placated or appeased
Czech:
neuklidnitelný
— not able to be placated or appeased
Czech:
neutišitelný
— not able to be placated or appeased
Czech:
nesmiřitelný
— not able to be placated or appeased
Dutch:
onverzoenlijk
— not able to be placated or appeased
Finnish:
leppymätön
— not able to be placated or appeased
Georgian:
შეუბრალებელი
(šeubralebeli)
— not able to be placated or appeased
German:
unversöhnlich
— not able to be placated or appeased
Gothic:
𐌿𐌽𐌷𐌿𐌽𐍃𐌻𐌰𐌲𐍃
(unhunslags)
— not able to be placated or appeased
Greek:
ανευμενίσιμος
(anevmenísimos)
— not able to be placated or appeased
Greek:
ανευμενίσιμη
(anevmenísimi)
— not able to be placated or appeased
Greek:
ανευμενίσιμο
(anevmenísimo)
— not able to be placated or appeased
Greek:
αμείλικτος
(ameíliktos)
— not able to be placated or appeased
Greek:
αδυσώπητος
(adysópitos)
— not able to be placated or appeased
Ancient Greek:
ἄσπονδος
(áspondos)
— not able to be placated or appeased
Ancient Greek:
ἄθελκτος
(áthelktos)
— not able to be placated or appeased
Hungarian:
engesztelhetetlen
— not able to be placated or appeased
Irish:
doshásta
— not able to be placated or appeased
Italian:
implacabile
— not able to be placated or appeased
Latin:
implācābilis
— not able to be placated or appeased
Latin:
implācābile
— not able to be placated or appeased
Manx:
neuveeinagh
— not able to be placated or appeased
Māori:
kaikiko
— not able to be placated or appeased
Middle English:
implācāble
— not able to be placated or appeased
Norwegian:
uforsonlig
— not able to be placated or appeased
Persian:
رام نشدنی
— not able to be placated or appeased
Persian:
آشتی ناپذیر
— not able to be placated or appeased
Polish:
nieubłagany
— not able to be placated or appeased
Portuguese:
implacável
— not able to be placated or appeased
Romanian:
implacabil
— not able to be placated or appeased
Russian:
непримири́мый
(neprimirímyj)
— not able to be placated or appeased
Russian:
неумоли́мый
(neumolímyj)
— not able to be placated or appeased
Russian:
закля́тый
(zakljátyj)
— not able to be placated or appeased
Spanish:
implacable
— not able to be placated or appeased
Turkish:
yatıştırılamaz
— not able to be placated or appeased
Ukrainian:
непримире́нний
(neprymyrénnyj)
— not able to be placated or appeased
Ukrainian:
непримири́мий
(neprymyrýmyj)
— not able to be placated or appeased
Bulgarian:
жесток
(žestok)
— impossible to prevent or stop — see also inexorable, unstoppable
French:
implacable
— impossible to prevent or stop — see also inexorable, unstoppable
French:
irréductible
— impossible to prevent or stop — see also inexorable, unstoppable
Georgian:
შეუბრალებელი
(šeubralebeli)
— impossible to prevent or stop — see also inexorable, unstoppable
Greek:
αδυσώπητος
(adysópitos)
— impossible to prevent or stop — see also inexorable, unstoppable
Greek:
αδυσώπητη
(adysópiti)
— impossible to prevent or stop — see also inexorable, unstoppable
Italian:
implacabile
— impossible to prevent or stop — see also inexorable, unstoppable
Manx:
neuveeinagh
— impossible to prevent or stop — see also inexorable, unstoppable
Russian:
неумолимый
(neumolimyj)
— impossible to prevent or stop — see also inexorable, unstoppable
Spanish:
implacable
— impossible to prevent or stop — see also inexorable, unstoppable
Ukrainian:
невблаганний
(nevblahannyj)
— impossible to prevent or stop — see also inexorable, unstoppable
Ukrainian:
непримире́нний
(neprymyrénnyj)
— impossible to prevent or stop — see also inexorable, unstoppable
Bulgarian:
непреклонен
(nepreklonen)
— adamant; immovable — see also adamant, immovable
Danish:
stædig
— adamant; immovable — see also adamant, immovable
German:
unerbittlich
— adamant; immovable — see also adamant, immovable
Hungarian:
kérlelhetetlen
— adamant; immovable — see also adamant, immovable
Romanian:
de neclintit
— adamant; immovable — see also adamant, immovable
Romanian:
ferm
— adamant; immovable — see also adamant, immovable
Romanian:
imobil
— adamant; immovable — see also adamant, immovable
Romanian:
nemișcat
— adamant; immovable — see also adamant, immovable
Romanian:
nemișcabil
— adamant; immovable — see also adamant, immovable
Russian:
непрекло́нный
(nepreklónnyj)
— adamant; immovable — see also adamant, immovable
Russian:
несдвига́емый
(nesdvigájemyj)
— adamant; immovable — see also adamant, immovable
Spanish:
implacable
— adamant; immovable — see also adamant, immovable
Spanish:
tenaz
— adamant; immovable — see also adamant, immovable
Swedish:
enveten
— adamant; immovable — see also adamant, immovable