unforeseeable

adj

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

"unforeseeable" is a 13-letter English headword indexed on PlainSpell.

The verdict

“unforeseeable” is uncommon English (frequency #63,339 among 1,433 “U” headwords), classed as an adjective. The kind of spelling people second-guess.

#63,339
frequency rank, English
1,433
“U” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Incapable of being foreseen or anticipated.

Corpus desk

Index EN-unforeseeable · unforeseeable · English

unforeseeable · rank #63,339 · 0 variants · 0 confusables

  • FREQ-RARE #63,339
  • LEN-MEGA 13 letters
  • VOW-7 7 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 1,433
  • PHOTO-FINISH undervalue

Nearest frequency peer: undervalue (-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 “unforeseeable”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for unforeseeable
PropertyValue
Headwordunforeseeable
LanguageEnglish
Part of speechAdjective
Letters13
Frequency rank#63,339
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “unforeseeable” in English

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).unforeseeablefalls 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: “undervalue” (#63,338), “unperturbed” (#63,340), “upstage” (#63,341). Among 1,433 “U” headwords, “unforeseeable” is #63,339. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

unforeseeable is uncommon English at frequency #63,339 among 1,433 “U” headwords, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Incapable of being foreseen or anticipated.".

The misspelling generator found no plausible variants for unforeseeable, since its letter sequence doesn't invite the usual edit-distance slips. Our confusable-pair dataset has no match for it, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From un- + foreseeable. The correct English form is unforeseeable, spelled U-N-F-O-R-E-S-E-E-A-B-L-E.

Definition

  1. 1
    Incapable of being foreseen or anticipated.

Recorded use

Wiktionary example

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

  1. Traincrew management has always been a bit of a black art, rather than a science. The present traincrew difficulties that beset the UK rail industry are neither new nor were they unforeseeable.

Etymology

From un- + foreseeable.

This word in other languages

imprevisible(Español)imprévisible(Français)unvorhersehbar(Deutsch)imprevisível(Português)

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 "unforeseeable"?
"unforeseeable" is spelled U-N-F-O-R-E-S-E-E-A-B-L-E.
What does "unforeseeable" mean?
As an adjective, "unforeseeable" means: Incapable of being foreseen or anticipated.
What is the origin of the word "unforeseeable"?
From un- + foreseeable. 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 "unforeseeable", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 13 letters (nearest by frequency rank).

Visakhapatnam#63,354clandestinely#63,509fossiliferous#63,627geomorphology#63,646

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

Source: FrequencyWords open word-frequency list