without fail

prep_phrase

"without-fail" is a 11-letter English headword indexed on PlainSpell.

The verdict

“without fail” is uncommon English (outside the top frequency list), classed as a prep_phrase. The kind of spelling people second-guess.

Unranked
below top-frequency English
12
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Certainly; by all means; as a matter of importance.

Corpus desk

Index EN-without-fail · without fail · English

without fail · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 12 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "W" 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 without fail
PropertyValue
Headwordwithout fail
LanguageEnglish
Part of speechPrep_phrase
Letters12
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “without fail” in English

without failfalls 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

without fail is uncommon English outside the top frequency list, classed as aprep_phrase. Rarity is why readers land here mid-draft. 2 senses are on record.

Our edit-distance generator produced no likely misspellings for without fail, which points to an orthography that plays by predictable English rules. No close-neighbour confusable shows up for this headword in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.

Our source data has no etymology on file for this entry, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. The correct English form is without fail, spelled W-I-T-H-O-U-T- -F-A-I-L.

Definition

  1. 1
    Certainly; by all means; as a matter of importance.
  2. 2
    Inevitably.

Recorded use

Wiktionary examples

These source excerpts show how without fail appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. You will report to the police every week without fail.
  2. And David enquired at the Lord, saying, Shall I pursue after this troop? shall I overtake them? And he answered him, Pursue: for thou shalt surely overtake them, and without fail recover all.

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.

Frequently Asked Questions

How do you spell "without fail"?
"without fail" is spelled W-I-T-H-O-U-T- -F-A-I-L.
What does "without fail" mean?
As a prep_phrase, "without fail" means: Certainly; by all means; as a matter of importance.
What language does "without fail" come from?
"without fail" is a English word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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.

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

Source: FrequencyWords open word-frequency list