impossibly

adv

By · According to Wiktionary data (CC BY-SA) ·

"impossibly" is a 10-letter English headword indexed on PlainSpell.

The verdict

“impossibly” has 14 generated spelling variants in the English index at frequency #30,091. The variants make it a useful spelling check.

#30,091
frequency rank, English
2,140
“I” headwords
14
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Not possibly; in an impossible manner.

Corpus desk

Index EN-impossibly · impossibly · English

impossibly · rank #30,091 · 14 variants · 1 confusable

  • FREQ-MID #30,091
  • LEN-MEGA 10 letters
  • VOW-4 4 vowels
  • CONFUS-LOW 1 pairs
  • VAR-HIGH 14 variants
  • BOOK-MID 2,140
  • PHOTO-FINISH impersonating

Nearest frequency peer: impersonating (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Rank peers near misspelling magnet “impossibly”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “impossibly” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

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

impossibly vs impossible
90% similar

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

Key facts for impossibly
PropertyValue
Headwordimpossibly
LanguageEnglish
Part of speechAdverb
Letters10
Frequency rank#30,091
Misspellings tracked14
Confusable pairs1
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “impossibly”

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).impossiblylands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Same rarity band neighbours include “impersonating” (#30,090), “impressively” (#30,092), “indulged” (#30,093). Among 2,140 “I” headwords, “impossibly” is #30,091. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 14 spelling variants around impossibly, anadverb. Corpus frequency is #30,091 among 2,140 “I” headwords. Wiktionary lists 3 senses, so context still picks the gloss.

Our generated misspelling index lists 14 likely wrong-spelling variants for impossibly, with forms such as "immpossibly", "imopssibly", and "imposibly". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 1 confusable-pair relationship, "impossible", since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From impossible + -ly. The correct English form is impossibly, spelled I-M-P-O-S-S-I-B-L-Y.

Definition

  1. 1
    Not possibly; in an impossible manner.
  2. 2
    To the point of impossibility.
  3. 3
    Contrary to what had been thought possible.

Recorded use

Wiktionary examples

These source excerpts show how impossibly appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. The topology problem was impossibly difficult.
  2. Impossibly, after the water receded, the cat was found asleep on a chair jammed in a tree.

Etymology

From impossible + -ly.

Antonyms

possibly

This word in other languages

imposiblemente(Español)impossiblement(Français)unmöglich(Deutsch)

Common misspellings

Also misspelled as:

  • immpossibly
  • imopssibly
  • imposibly
  • imposisbly
  • impossbily
  • impossibbly
  • impossiblly
  • impossiblyy
  • impossibyl
  • impossilby
  • imppossibly
  • impsosibly
  • ipmossibly
  • mipossibly

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of impossibly - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

immpossibly1imopssibly2imposibly1imposisbly2impossbily2impossibbly1impossiblly1impossiblyy1
Edit distance from "impossibly"

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 "impossibly"?
"impossibly" is spelled I-M-P-O-S-S-I-B-L-Y.
What does "impossibly" mean?
As an adverb, "impossibly" means: Not possibly; in an impossible manner.
What words are commonly confused with "impossibly"?
"impossibly" is commonly confused with "impossible". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What is the origin of the word "impossibly"?
From impossible + -ly. See the full etymology section above for more details.
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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "impossibly", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 10 letters (nearest by frequency rank).

fulfilment#30,053motionless#30,144encampment#30,022displeased#30,006

Similar misspelling depth

Headwords with a similar count of attested misspellings (14 here; floor ≥5).

headlight14 variantsFeinstein14 variantsnavigable14 variantselegantly14 variants

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list