scalyvssicklyTell them apart

Which to use

“scaly” and “sickly” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#36,750
“scaly” frequency rank
#28,018
“sickly” frequency rank
64768
confusion score

Side-by-Side Comparison

Feature scaly sickly
Definition Covered or abounding with scales. Frequently ill or in poor health; weakly.

Where the eye mixes scaly and sickly

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. scaly runs 5 letters (CCVCV) against sickly's 6 (CVCCCV) - the length gap alone is often enough to separate them once you know to check it.

5 ch
scaly
6 ch
sickly

Visual trap between scaly and sickly

A purely visual mix-up. scaly (/ˈskeɪli/) and sickly (/ˈsɪkli/) 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 1 letter(s) in length. Our composite confusion score for this pair is 64768, derived from the frequency rank of both members and their visual similarity.

scaly is recorded at frequency rank #36,750, classified as anadj, pronounced /ˈskeɪli/. sickly is at rank #28,018, tagged as anadj, pronounced /ˈsɪkli/.

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 64768, this pair ranks #76,087 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of scaly vs sickly

Shared letters: clsy. Private to "scaly": a. Private to "sickly": ik.

"scaly" · 5 letters · shape CCVCV  ·  "sickly" · 6 letters · shape CVCCCV

Known mistypes of this pair

  • scaly ← csaly · sacly · scally · scalyy · scayl · sccaly · sclay · sscaly
  • sickly ← isckly · scikly · sicckly · sickkly · sicklly · sicklyy · sickyl · siclky

Frequently Asked Questions

Is swapping "scaly" for "sickly" ever safe?
No. They are said differently (/ˈskeɪli/ versus /ˈsɪkli/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary English text, does "scaly" or "sickly" show up more?
"sickly" is the more common of the two: it sits at frequency rank #28,018 in our English list, against #36,750 for "scaly". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Eye-level mix-up between "scaly" and "sickly" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "scaly" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sickly" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #76,087 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "scaly" and "sickly" also get mixed up with nearby pairs, the highest-scored neighbour is "scaly vs Swamy". 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 #76,087 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list