flabbergast

/ˈflæbə(ˌ)ɡɑːst/

//ˈflæbə(ˌ)ɡɑːst// verb

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

The verdict

“flabbergast” is uncommon English (outside the top frequency list), classed as a verb. The kind of spelling people second-guess.

Unranked
below top-frequency English
11
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - To overwhelm with bewilderment; to amaze, confound, or stun, especially in a ludicrous manner.

Corpus desk

Index EN-flabbergast · flabbergast · English

flabbergast · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 11 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "F" thin
  • PHOTO-UNK Peer pending

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.

Key facts for flabbergast
PropertyValue
Headwordflabbergast
LanguageEnglish
Part of speechVerb
IPA/ˈflæbə(ˌ)ɡɑːst/
Letters11
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “flabbergast” sits in English frequency

flabbergast falls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

flabbergast is uncommon English outside the top frequency list, classed as averb, transcribed /ˈflæbə(ˌ)ɡɑːst/. Rarity is why readers land here mid-draft. Gloss: "To overwhelm with bewilderment; to amaze, confound, or stun, especially in a ludicrous manner.".

flabbergast doesn't appear in our generated misspelling index, a sign its spelling follows regular English conventions. It is not paired with a close-neighbour confusable in our dataset, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: The origin of the verb is uncertain; possibly dialectal (Suffolk), from flabby or flap (“to strike”) + aghast. The word may be related to Scottish flabrigast (“to boast”) or flabrigastit (“worn out with exertion”). The noun is derived from the verb. The correct English form is flabbergast, spelled F-L-A-B-B-E-R-G-A-S-T.

Definition

  1. 1
    To overwhelm with bewilderment; to amaze, confound, or stun, especially in a ludicrous manner.

Recorded use

Wiktionary examples

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

  1. He was flabbergasted to find that his work had been done for him before he began.
  2. Her stupidity flabbergasts me, and I have to force myself to keep a straight face while she explains her beliefs.

Etymology

The origin of the verb is uncertain; possibly dialectal (Suffolk), from flabby or flap (“to strike”) + aghast. The word may be related to Scottish flabrigast (“to boast”) or flabrigastit (“worn out with exertion”). The noun is derived from the verb.

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). See the methodology for how each field is sourced and updated.

PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 6, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.

Frequently Asked Questions

How do you spell "flabbergast"?
"flabbergast" is spelled F-L-A-B-B-E-R-G-A-S-T. The IPA pronunciation is /ˈflæbə(ˌ)ɡɑːst/.
What does "flabbergast" mean?
As a verb, "flabbergast" means: To overwhelm with bewilderment; to amaze, confound, or stun, especially in a ludicrous manner.
How do you pronounce "flabbergast"?
The IPA (International Phonetic Alphabet) transcription for "flabbergast" is /ˈflæbə(ˌ)ɡɑːst/. 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 "flabbergast"?
The origin of the verb is uncertain; possibly dialectal (Suffolk), from flabby or flap (“to strike”) + aghast. The word may be related to Scottish flabrigast (“to boast”) or flabrigastit (“worn out with exertion”). The noun is derived from the verb. 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.
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.

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

Source: FrequencyWords open word-frequency list