Which to use
“variability” and “viability” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #17,744
- “variability” frequency rank
- #16,381
- “viability” frequency rank
- 34125
- confusion score
Side-by-Side Comparison
| Feature | variability | viability |
|---|---|---|
| Definition | The state or characteristic of being variable. | The property of being viable; the ability to live or to succeed. |
Where the eye mixes variability and viability
Muted = shared; highlighted = the visual trap. They share 9 letters in sequence.
Why the eye confuses variability with viability
A purely visual mix-up. variability (/ˌvɛəɹ.i.əˈbɪl.ə.ti/) and viability (/ˌvaɪəˈbɪlɪti/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 2 letter(s) in length. Our composite confusion score for this pair is 34125, derived from the frequency rank of both members and their visual similarity.
variability is recorded at frequency rank #17,744, classified as anoun, pronounced /ˌvɛəɹ.i.əˈbɪl.ə.ti/. viability is at rank #16,381, tagged as anoun, pronounced /ˌvaɪəˈbɪlɪti/.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 34125, this pair ranks #323,453 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of variability vs viability
Shared letters: abiltvy. Private to "variability": r. Private to "viability": -.
"variability" · 11 letters · shape CVCVVCVCVCV · "viability" · 9 letters · shape CVVCVCVCV
Known mistypes of this pair
- variability ← avriability · vairability · varaibility · variabbility · variabiilty · variabilitty · variabilityy · variabiliyt
- viability ← ivability · vaibility · viabbility · viabiilty · viabilitty · viabilityy · viabiliyt · viabillity
Frequently Asked Questions
Do "variability" and "viability" mean the same thing in a sentence?
Which is more common, "variability" or "viability"?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "variability" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "viability" - compare definitions side by side with the headword page. Word entry
- This pair ranks #323,453 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "variability" and "viability" also get mixed up with nearby pairs, the highest-scored neighbour is "viability vs visibility". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #323,453 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.