rationally

adv

"rationally" is a 10-letter English headword indexed on PlainSpell.

The verdict

“rationally” has 13 generated spelling variants in the English index at frequency #26,220. The variants make it a useful spelling check.

#26,220
frequency rank, English
3,094
“R” headwords
13
tracked misspellings
4
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - In a rational manner

Corpus desk

Index EN-rationally · rationally · English

rationally · rank #26,220 · 13 variants · 4 confusables

  • FREQ-MID #26,220
  • LEN-MEGA 10 letters
  • VOW-5 5 vowels
  • CONFUS-MID 4 pairs
  • VAR-HIGH 13 variants
  • BOOK-MID 3,094
  • PHOTO-FINISH radiotherapy

Nearest frequency peer: radiotherapy (-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 “rationally”

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

corpus weight

What this shows “rationally” 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).

rationally vs regionally
80% similar
rationally vs rational
80% similar
rationally vs rationale
80% similar

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

Key facts for rationally
PropertyValue
Headwordrationally
LanguageEnglish
Part of speechAdverb
Letters10
Frequency rank#26,220
Misspellings tracked13
Confusable pairs4
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “rationally”

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).rationallylands here:

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

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “radiotherapy” (#26,219), “Reddy” (#26,222), “purposefully” (#26,216). Among 3,094 “R” headwords, “rationally” is #26,220. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 13 spelling variants around rationally, anadverb. Corpus frequency is #26,220 among 3,094 “R” headwords. Dominant gloss: "In a rational manner".

Our generated misspelling index lists 13 likely wrong-spelling variants for rationally, with forms such as "artionally", "raitonally", and "ratinoally". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 4 confusable-pair relationships, "regionally", "rational", "rationale", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

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

Definition

  1. 1
    In a rational manner

Recorded use

Wiktionary examples

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

  1. Concerning the lenity of God, upon which you have most rationally dilated, the 10th chapt. of the 1 booke of Proclus would extreamely delight you.
  2. […] inasmuch as nothing was really and rationally to be hoped for but a long continuance of the siege and wearying out of the English, they were naturally a little afraid of Joan's impetuous notions. He said— “You see, we are sure that the waiting game is the best, whereas you would carry everything by storm.”

Etymology

From rational + -ly.

Antonyms

This word in other languages

Common misspellings

Also misspelled as:

  • artionally
  • raitonally
  • ratinoally
  • ratioanlly
  • rationallyy
  • rationaly
  • rationalyl
  • rationlaly
  • rationnally
  • ratoinally
  • rattionally
  • rrationally
  • rtaionally

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of rationally - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

artionally2raitonally2ratinoally2ratioanlly2rationallyy1rationaly1rationalyl2rationlaly2
Edit distance from "rationally"

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 "rationally"?
"rationally" is spelled R-A-T-I-O-N-A-L-L-Y.
What does "rationally" mean?
As an adverb, "rationally" means: In a rational manner
What words are commonly confused with "rationally"?
"rationally" is commonly confused with "regionally", "rational", "rationale". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What is the origin of the word "rationally"?
From rational + -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 "rationally", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 10 letters (nearest by frequency rank).

Similar misspelling depth

Headwords with a similar count of attested misspellings (13 here; floor ≥5).

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

Source: FrequencyWords open word-frequency list