implacable

Name: implacable, English Word Data
Creator: Wiktionary
License: https://creativecommons.org/licenses/by-sa/4.0/

/ɪmˈplækəb(ə)l/

//ɪmˈplækəb(ə)l// adj

By PlainSpell Editorial Team · According to Wiktionary data (CC BY-SA) · analyzed May 6, 2026

The verdict

“implacable” is a moderately-common English word, ranked #46,539 in English word frequency and used as an adjective.

#46,539
frequency rank, English: 10
letters: 16
tracked misspellings: 1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Not able to be placated or appeased.

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

implacable vs impeccable

80% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for implacable
Property	Value
Headword	implacable
Language	English
Part of speech	Adjective
IPA	/ɪmˈplækəb(ə)l/
Letters	10
Frequency rank	#46,539
Misspellings tracked	16
Confusable pairs	1
Source	Wiktionary (kaikki.org)

Where “implacable” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). implacable lands here:

#46,539

#1#100#1K#10K#100K

← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for implacable is 10 letters long, classified as an adjective, and transcribed in the International Phonetic Alphabet as /ɪmˈplækəb(ə)l/. Corpus data places it at rank #46,539 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 3 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 16 likely wrong-spelling variants for implacable, with forms such as "imlpacable", "immplacable", and "impalcable". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 1 confusable-pair relationship, "impeccable", since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: 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 mea… The correct English form is implacable, spelled I-M-P-L-A-C-A-B-L-E.

Definition

1
Not able to be placated or appeased.
2
Impossible to prevent or stop; inexorable, unrelenting, unstoppable.
3
Adamant; immovable.

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)).

This word in other languages

implacable(Español)implacable(Français)unversöhnlich(Deutsch)implacável(Português)

Common misspellings

Also misspelled as: imlpacable,immplacable,impalcable,implaacble,implacabble,implacabel,implacablle,implacalbe,implacbale,implaccable,implacible,implcaable,impllacable,impplacable,ipmlacable,miplacable

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of implacable - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

Edit distance from "implacable"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "implacable"?

"implacable" is spelled I-M-P-L-A-C-A-B-L-E. The IPA pronunciation is /ɪmˈplækəb(ə)l/.

What does "implacable" mean?

As an adjective, "implacable" means: Not able to be placated or appeased.

What words are commonly confused with "implacable"?

"implacable" is commonly confused with "impeccable". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.

How do you pronounce "implacable"?

The IPA (International Phonetic Alphabet) transcription for "implacable" is /ɪmˈplækəb(ə)l/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.

What is the origin of the word "implacable"?

Is PlainSpell free to use?

Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “implacable”

The practical upshot for anyone who landed here from a spell-check.

The one correct English spelling is I-M-P-L-A-C-A-B-L-E - every other letter order is a misspelling in standard orthography.
Say it as /ɪmˈplækəb(ə)l/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
Don't mix it up with “impeccable” - see the side-by-side comparison. implacable vs impeccable
Browse more English words and confusable pairs in the same reference. English words

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.