speedless

/ˈspiːdləs/

//ˈspiːdləs// adj

"speedless" is a 9-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
9
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Lacking success or prosperity; not prosperous; unfortunate; unsuccessful.

Corpus desk

Index EN-speedless · speedless · English

speedless · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 9 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "S" 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 speedless
PropertyValue
Headwordspeedless
LanguageEnglish
Part of speechAdjective
IPA/ˈspiːdləs/
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “speedless” in English

speedlesssits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

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

Rare enough to double-check

speedless is uncommon English outside the top frequency list, classed as anadjective, transcribed /ˈspiːdləs/. Rarity is why readers land here mid-draft. 2 senses are on record.

Zero misspellings are on record for speedless in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. This entry stands alone in our confusable dataset, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: From Middle English spedles, equivalent to speed + -less. The correct English form is speedless, spelled S-P-E-E-D-L-E-S-S.

Definition

  1. 1
    Lacking success or prosperity; not prosperous; unfortunate; unsuccessful.
  2. 2
    Without speed; slow; sluggish or steady.

Etymology

From Middle English spedles, equivalent to speed + -less.

Antonyms

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 "speedless"?
"speedless" is spelled S-P-E-E-D-L-E-S-S. The IPA pronunciation is /ˈspiːdləs/.
What does "speedless" mean?
As an adjective, "speedless" means: Lacking success or prosperity; not prosperous; unfortunate; unsuccessful.
How do you pronounce "speedless"?
The IPA (International Phonetic Alphabet) transcription for "speedless" is /ˈspiːdləs/. 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 "speedless"?
From Middle English spedles, equivalent to speed + -less. 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.

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

Source: FrequencyWords open word-frequency list