frightfully

/ˈfɹaɪtfəli/

//ˈfɹaɪtfəli// adv

"frightfully" is a 11-letter English headword indexed on PlainSpell.

The verdict

“frightfully” is uncommon English (frequency #62,154 among 2,507 “F” headwords), classed as an adverb. The kind of spelling people second-guess.

#62,154
frequency rank, English
2,507
“F” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - In a frightful manner.

Corpus desk

Index EN-frightfully · frightfully · English

frightfully · rank #62,154 · 0 variants · 0 confusables

  • FREQ-RARE #62,154
  • LEN-MEGA 11 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,507
  • PHOTO-FINISH fruitcake

Nearest frequency peer: fruitcake (+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.

Long-tail ranks near “frightfully”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “frightfully” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for frightfully
PropertyValue
Headwordfrightfully
LanguageEnglish
Part of speechAdverb
IPA/ˈfɹaɪtfəli/
Letters11
Frequency rank#62,154
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “frightfully” in English

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).frightfullyfalls in this rarity band:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Rare peers in the same band: “fruitcake” (#62,155), “freckled” (#62,152), “freckle” (#62,151). Among 2,507 “F” headwords, “frightfully” is #62,154. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

frightfully is uncommon English at frequency #62,154 among 2,507 “F” headwords, classed as anadverb, transcribed /ˈfɹaɪtfəli/. Rarity is why readers land here mid-draft. 2 senses are on record.

Zero misspellings are on record for frightfully in our index, since its letter pattern doesn't lend itself to common typo substitutions. It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From frightful + -ly. The correct English form is frightfully, spelled F-R-I-G-H-T-F-U-L-L-Y.

Definition

  1. 1
    In a frightful manner.
  2. 2
    Very, extremely.

Recorded use

Wiktionary examples

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

  1. It all went frightfully quickly.
  2. "Really!" he said, collapsing into lassitude. "It's too frightfully hot for singing."

Etymology

From frightful + -ly.

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 "frightfully"?
"frightfully" is spelled F-R-I-G-H-T-F-U-L-L-Y. The IPA pronunciation is /ˈfɹaɪtfəli/.
What does "frightfully" mean?
As an adverb, "frightfully" means: In a frightful manner.
How do you pronounce "frightfully"?
The IPA (International Phonetic Alphabet) transcription for "frightfully" is /ˈfɹaɪtfəli/. 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 "frightfully"?
From frightful + -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 "frightfully", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 11 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list