Which to use
“harden” and “hasten” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #14,554
- “harden” frequency rank
- #31,591
- “hasten” frequency rank
- 46145
- confusion score
Side-by-Side Comparison
| Feature | harden | hasten |
|---|---|---|
| Definition | To become hard. | To move or act in a quick fashion. |
Where the eye mixes harden and hasten
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. harden and hasten follow the identical consonant-vowel pattern (CVCCVC). Same shape at a glance is often the real trap, independent of shared letters.
Look-alike desk: harden vs hasten
A purely visual mix-up. harden (/ˈhɑɹdn̩/) and hasten (/ˈheɪ.sn̩/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 46145, derived from the frequency rank of both members and their visual similarity.
harden is recorded at frequency rank #14,554, classified as averb, pronounced /ˈhɑɹdn̩/. hasten is at rank #31,591, tagged as averb, pronounced /ˈheɪ.sn̩/.
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 46145, this pair ranks #214,518 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of harden vs hasten
Shared letters: aehn. Private to "harden": dr. Private to "hasten": st.
"harden" · 6 letters · shape CVCCVC · "hasten" · 6 letters · shape CVCCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "harden" for "hasten" ever safe?
Frequency check: "harden" vs "hasten" - which ranks higher?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "harden" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "hasten" - compare definitions side by side with the headword page. Word entry
- This pair ranks #214,518 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "harden" and "hasten" also get mixed up with nearby pairs, the highest-scored neighbour is "hasta vs hasten". 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 #214,518 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.