idler

noun

"idler" is a 5-letter English headword indexed on PlainSpell.

The verdict

“idler” is uncommon English (frequency #66,739 among 2,140 “I” headwords), classed as a noun. The kind of spelling people second-guess.

#66,739
frequency rank, English
2,140
“I” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - One who idles; one who spends their time in inaction.

Corpus desk

Index EN-idler · idler · English

idler · rank #66,739 · 0 variants · 0 confusables

  • FREQ-RARE #66,739
  • LEN-MID 5 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,140
  • PHOTO-FINISH Hywel

Nearest frequency peer: Hywel (-2 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 “idler”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for idler
PropertyValue
Headwordidler
LanguageEnglish
Part of speechNoun
Letters5
Frequency rank#66,739
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “idler” in English

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).idlerfalls in this rarity band:

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

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “Hywel” (#66,737), “ignominy” (#66,741), “hypochondriac” (#66,736). Among 2,140 “I” headwords, “idler” is #66,739. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

idler is uncommon English at frequency #66,739 among 2,140 “I” headwords, classed as anoun. Rarity is why readers land here mid-draft. 4 senses are on record.

Zero misspellings are on record for idler in our index, typically a sign the spelling maps closely to how the word sounds. It is not paired with a close-neighbour confusable in our dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From idle + -er. The correct English form is idler, spelled I-D-L-E-R.

Definition

  1. 1
    One who idles; one who spends their time in inaction.
  2. 2
    One who idles; a lazy person; a sluggard.
  3. 3
    Any member of a ship's crew who is not required to keep the night-watch.
  4. 4
    A mechanical device such as a pulley or wheel that does not transmit power through its own axle, but forms part of a gear train, supports a moving belt, etc.

Recorded use

Wiktionary example

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

  1. FOR SALE AT A BARGAIN. […] Four run stones, Munson underrunners, 3 ft diameter. […] All with idlers and in the best condition.

Etymology

From idle + -er.

Synonyms

Antonyms

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); 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 "idler"?
"idler" is spelled I-D-L-E-R.
What does "idler" mean?
As a noun, "idler" means: One who idles; one who spends their time in inaction.
What is the origin of the word "idler"?
From idle + -er. 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 "idler", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 5 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list