Which to use
“harmless” and “heartless” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #9,757
- “harmless” frequency rank
- #18,850
- “heartless” frequency rank
- 28607
- confusion score
Side-by-Side Comparison
| Feature | harmless | heartless |
|---|---|---|
| Definition | Incapable of causing harm or danger; safe. | Without feeling, emotion, or concern for others; uncaring; cruel. |
Where the eye mixes harmless and heartless
Muted = shared; highlighted = the visual trap. They share 7 letters in sequence.
Visual trap between harmless and heartless
A purely visual mix-up. harmless (/ˈhɑːmləs/) and heartless (/ˈhɑːt.lɪs/) 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 28607, derived from the frequency rank of both members and their visual similarity.
harmless is recorded at frequency rank #9,757, classified as anadj, pronounced /ˈhɑːmləs/. heartless is at rank #18,850, tagged as anadj, pronounced /ˈhɑːt.lɪs/.
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 28607, this pair ranks #369,727 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of harmless vs heartless
Shared letters: aehlrs. Private to "harmless": m. Private to "heartless": t.
"harmless" · 8 letters · shape CVCCCVCC · "heartless" · 9 letters · shape CVVCCCVCC
Known mistypes of this pair
Frequently Asked Questions
Do "harmless" and "heartless" mean the same thing in a sentence?
Frequency check: "harmless" vs "heartless" - which ranks higher?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "harmless" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "heartless" - compare definitions side by side with the headword page. Word entry
- This pair ranks #369,727 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "harmless" and "heartless" also get mixed up with nearby pairs, the highest-scored neighbour is "Harkness vs harmless". 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 #369,727 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.