irrationally

adv

"irrationally" is a 12-letter English headword indexed on PlainSpell.

The verdict

“irrationally” has 14 generated spelling variants in the English index at frequency #49,430. The variants make it a useful spelling check.

#49,430
frequency rank, English
2,140
“I” headwords
14
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - In an irrational manner; without reason; in a manner contrary to reason

Corpus desk

Index EN-irrationally · irrationally · English

irrationally · rank #49,430 · 14 variants · 1 confusable

  • FREQ-MID #49,430
  • LEN-MEGA 12 letters
  • VOW-6 6 vowels
  • CONFUS-LOW 1 pairs
  • VAR-HIGH 14 variants
  • BOOK-MID 2,140
  • PHOTO-FINISH international…

Nearest frequency peer: internationalization (-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.

Rank peers near misspelling magnet “irrationally”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “irrationally” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

irrationally vs irrational
83% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for irrationally
PropertyValue
Headwordirrationally
LanguageEnglish
Part of speechAdverb
Letters12
Frequency rank#49,430
Misspellings tracked14
Confusable pairs1
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “irrationally”

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).irrationallylands here:

#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. Same rarity band neighbours include “internationalization” (#49,429), “irrepressible” (#49,431), “isha” (#49,432). Among 2,140 “I” headwords, “irrationally” is #49,430. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 14 spelling variants around irrationally, anadverb. Corpus frequency is #49,430 among 2,140 “I” headwords. Dominant gloss: "In an irrational manner; without reason; in a manner contrary to reason".

Our generated misspelling index lists 14 likely wrong-spelling variants for irrationally, with forms such as "irartionally", "irationally", and "irraitonally". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 1 confusable-pair relationship, "irrational", a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: From irrational + -ly. The correct English form is irrationally, spelled I-R-R-A-T-I-O-N-A-L-L-Y.

Definition

  1. 1
    In an irrational manner; without reason; in a manner contrary to reason

Recorded use

Wiktionary examples

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

  1. He was not sure that he wanted to see the Countess Olenska again; but ever since he had looked at her from the path above the bay he had wanted, irrationally and indescribably, to see the place she was living in, and to follow the movements of her imagined figure as he had watched the real one in the summer-house.
  2. Some people that irrationally hate the military as a whole *might* just qualify as well.

Etymology

From irrational + -ly.

Antonyms

This word in other languages

Common misspellings

Also misspelled as:

  • irartionally
  • irationally
  • irraitonally
  • irratinoally
  • irratioanlly
  • irrationallyy
  • irrationaly
  • irrationalyl
  • irrationlaly
  • irrationnally
  • irratoinally
  • irrattionally
  • irrtaionally
  • rirationally

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of irrationally - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

irartionally2irationally1irraitonally2irratinoally2irratioanlly2irrationallyy1irrationaly1irrationalyl2
Edit distance from "irrationally"

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 "irrationally"?
"irrationally" is spelled I-R-R-A-T-I-O-N-A-L-L-Y.
What does "irrationally" mean?
As an adverb, "irrationally" means: In an irrational manner; without reason; in a manner contrary to reason
What words are commonly confused with "irrationally"?
"irrationally" is commonly confused with "irrational". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What is the origin of the word "irrationally"?
From irrational + -ly. 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 "irrationally", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 12 letters (nearest by frequency rank).

Similar misspelling depth

Headwords with a similar count of attested misspellings (14 here; floor ≥5).

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

Source: FrequencyWords open word-frequency list