Which to use
“unstable” and “unsuitable” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #8,741
- “unstable” frequency rank
- #20,533
- “unsuitable” frequency rank
- 29274
- confusion score
Side-by-Side Comparison
| Feature | unstable | unsuitable |
|---|---|---|
| Definition | Not stable. | Not suitable. |
Where the eye mixes unstable and unsuitable
Muted = shared; highlighted = the visual trap. They share 8 letters in sequence.
Spelling & Dictionary Insight
A purely visual mix-up. unstable (/ʌnˈsteɪ.bəl/) and unsuitable (/ʌnˈsuːtəbəl/) 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 29274, derived from the frequency rank of both members and their visual similarity.
unstable is recorded at frequency rank #8,741, classified as anadj, pronounced /ʌnˈsteɪ.bəl/. unsuitable is at rank #20,533, tagged as anadj, pronounced /ʌnˈsuːtəbəl/.
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 29274, this pair ranks #364,335 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of unstable vs unsuitable
Shared letters: abelnstu. Private to "unstable": -. Private to "unsuitable": i.
"unstable" · 8 letters · shape VCCCVCCV · "unsuitable" · 10 letters · shape VCCVVCVCCV
Known mistypes of this pair
- unstable ← nustable · unnstable · unsatble · unsstable · unstabble · unstabel · unstablle · unstalbe
- unsuitable ← nusuitable · unnsuitable · unsiutable · unssuitable · unsuiatble · unsuitabble · unsuitabel · unsuitablle