imperceptibly
"imperceptibly" is a 13-letter English headword indexed on PlainSpell.
The verdict
“imperceptibly” is an uncommon English word, ranked #71,585 in English word frequency and used as an adverb.
- #71,585
- frequency rank, English
- 13
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Not noticeably; such that it cannot be detected, through being too small or too fast, etc.
| Property | Value |
|---|---|
| Headword | imperceptibly |
| Language | English |
| Part of speech | Adverb |
| Letters | 13 |
| Frequency rank | #71,585 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “imperceptibly” sits in English frequency
Spelling & Dictionary Insight
The English entry for imperceptibly is 13 letters long, classified as an adverb. Corpus data places it at rank #71,585 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "Not noticeably; such that it cannot be detected, through being too small or too fast, etc.".
No misspelling variants are generated for imperceptibly in our index, since its letter pattern doesn't lend itself to common typo substitutions. This entry stands alone in our confusable dataset, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From imperceptible + -ly. The correct English form is imperceptibly, spelled I-M-P-E-R-C-E-P-T-I-B-L-Y.
Definition
- 1Not noticeably; such that it cannot be detected, through being too small or too fast, etc.
Etymology
From imperceptible + -ly.
This word in other languages
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
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Using “imperceptibly”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is I-M-P-E-R-C-E-P-T-I-B-L-Y - every other letter order is a misspelling in standard orthography.
- 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.