predominantvspredominantlyWhat's the difference?

Quick tell: predominant is a adjective, predominantly is an adverb, so they fill different roles in a sentence.

Which to use

“predominant” is an adjective and “predominantly” is an adverb - they look or sound alike but fill different roles in a sentence.

#20,190
“predominant” frequency rank
#9,650
“predominantly” frequency rank
29840
confusion score

Side-by-Side Comparison

Feature predominant predominantly
Definition Common or widespread; prevalent. In a predominant manner. Most commonly or frequently by a large margin.

Where the eye mixes predominant and predominantly

Muted = shared; highlighted = the visual trap. They share 11 letters in sequence.

11 ch
predominant
13 ch
predominantly

Visual trap between predominant and predominantly

These two trip readers on the page rather than in the ear: predominant is /pɹɪˈdɒmɪnənt/ while predominantly is /pɹɪˈdɒmɪnəntli/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “predominant” sits inside “predominantly”, and the parts of speech differ too (adjective vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 29840, derived from the frequency rank of both members and their visual similarity.

predominant is recorded at frequency rank #20,190, classified as anadj, pronounced /pɹɪˈdɒmɪnənt/. predominantly is at rank #9,650, tagged as anadv, pronounced /pɹɪˈdɒmɪnəntli/.

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 29840, this pair ranks #359,571 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of predominant vs predominantly

Shared letters: adeimnoprt. Private to "predominant": -. Private to "predominantly": ly.

"predominant" · 11 letters · shape CCVCVCVCVCC  ·  "predominantly" · 13 letters · shape CCVCVCVCVCCCV

Known mistypes of this pair

  • predominantperdominant · ppredominant · prdeominant · preddominant · predmoinant · predoimnant · predomiannt · predominannt
  • predominantlyperdominantly · ppredominantly · prdeominantly · preddominantly · predmoinantly · predoimnantly · predomianntly · predominanlty

Frequently Asked Questions

Is swapping "predominant" for "predominantly" ever safe?
No - they are not even the same part of speech. "predominant" is an adjective and "predominantly" an adverb, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "predominant" or "predominantly" show up more?
"predominantly" is the more common of the two: it sits at frequency rank #9,650 in our English list, against #20,190 for "predominant". 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 "predominant" and "predominantly" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "predominant" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "predominantly" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #359,571 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "predominant" and "predominantly" also get mixed up with nearby pairs, the highest-scored neighbour is "predominant vs predominate". 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 #359,571 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