persistencevspersistentTell them apart

Quick tell: persistence is a noun, persistent is an adjective, so they fill different roles in a sentence.

Which to use

“persistence” is a noun and “persistent” is an adjective - they look or sound alike but fill different roles in a sentence.

#14,808
“persistence” frequency rank
#8,329
“persistent” frequency rank
23137
confusion score

Side-by-Side Comparison

Feature persistence persistent
Definition The property of being persistent. Obstinately refusing to give up or let go.

Where the eye mixes persistence and persistent

Muted = shared; highlighted = the visual trap. They share 9 letters in sequence.

11 ch
persistence
10 ch
persistent

Why the eye confuses persistence with persistent

These two trip readers on the page rather than in the ear: persistence is /pəˈsɪst(ə)ns/ while persistent is /pɚˈsɪstənt/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 23137, derived from the frequency rank of both members and their visual similarity.

persistence is recorded at frequency rank #14,808, classified as anoun, pronounced /pəˈsɪst(ə)ns/. persistent is at rank #8,329, tagged as anadj, pronounced /pɚˈsɪstənt/.

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 23137, this pair ranks #411,486 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of persistence vs persistent

Shared letters: einprst. Private to "persistence": c. Private to "persistent": -.

"persistence" · 11 letters · shape CVCCVCCVCCV  ·  "persistent" · 10 letters · shape CVCCVCCVCC

Known mistypes of this pair

  • persistenceeprsistence · perisstence · perrsistence · persisetnce · persisstence · persistance · persistecne · persistencce
  • persistenteprsistent · perisstent · perrsistent · persisetnt · persisstent · persistennt · persistentt · persistetn

Frequently Asked Questions

Is swapping "persistence" for "persistent" ever safe?
No - they are not even the same part of speech. "persistence" is a noun and "persistent" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "persistence" or "persistent" show up more?
"persistent" is the more common of the two: it sits at frequency rank #8,329 in our English list, against #14,808 for "persistence". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "persistence" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "persistent" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #411,486 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "persistence" and "persistent" also get mixed up with nearby pairs, the highest-scored neighbour is "persistent vs persisting". 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 #411,486 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