scalyvssullyConfusable pair

Quick tell: scaly is a adjective, sully is a verb, so they fill different roles in a sentence.

Which to use

“scaly” is an adjective and “sully” is a verb - they look or sound alike but fill different roles in a sentence.

#36,750
“scaly” frequency rank
#25,227
“sully” frequency rank
61977
confusion score

Side-by-Side Comparison

Feature scaly sully
Definition Covered or abounding with scales. To soil or stain; to dirty.

Where the eye mixes scaly and sully

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. scaly (CCVCV) and sully (CVCCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

5 ch
scaly
5 ch
sully

Visual trap between scaly and sully

These two trip readers on the page rather than in the ear: scaly is /ˈskeɪli/ while sully is /ˈsʌli/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adjective vs verb), which is usually the fastest check. Our composite confusion score for this pair is 61977, 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/. sully is at rank #25,227, tagged as averb, pronounced /ˈsʌli/.

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 61977, this pair ranks #91,055 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of scaly vs sully

Shared letters: lsy. Private to "scaly": ac. Private to "sully": u.

"scaly" · 5 letters · shape CCVCV  ·  "sully" · 5 letters · shape CVCCV

Known mistypes of this pair

  • scaly ← csaly · sacly · scally · scalyy · scayl · sccaly · sclay · sscaly
  • sully ← sluly · ssully · sullyy · suly · sulyl · uslly

Frequently Asked Questions

Can "scaly" and "sully" be used interchangeably?
No - they are not even the same part of speech. "scaly" is an adjective and "sully" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "scaly" or "sully" show up more?
"sully" is the more common of the two: it sits at frequency rank #25,227 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

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "scaly" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sully" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #91,055 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "scaly" and "sully" 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 #91,055 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