Standard Lemma guide

harmful

adj · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Received-Pronunciation: /ˈhɑːmfl̩/
  • General-American: /ˈhɑɹmfl̩/
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: HH AA1 R M F AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Causing or likely to cause harm or damage; injurious.

Definition source: English Wiktionary via Wiktextract

Examples

  • Wear a hat to protect your skin from harmful sunlight.
  • Smoking is harmful to the lungs.
  • Burning fossil fuels is harmful to the environment.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adjective

Meaning 2

causing or capable of causing harm

Definition source: Princeton WordNet 3.0

Examples

  • too much sun is harmful to the skin
  • harmful effects of smoking

Meaning relationships

Synonyms: none provided

Antonyms: harmless

History

Etymology

From Middle English harmful, from Old English *hearmful (suggested by hearmfullīċ (“harmful; hurtful”)), equivalent to harm + -ful. Cognate with German harmvoll, Danish harmfuld, Swedish harmfull.

Across languages

Translations

106 source translations are retained for this English entry.

  • Arabic: ضَارّ (ḍārr) — likely to be damaging
  • Arabic: مُضِرّ (muḍirr) — likely to be damaging
  • Armenian: վնասակար (vnasakar) — likely to be damaging
  • Armenian: վնասաբեր (vnasaber) — likely to be damaging
  • Asturian: dañible — likely to be damaging
  • Asturian: malín — likely to be damaging
  • Asturian: nocivu — likely to be damaging
  • Azerbaijani: zərərli — likely to be damaging
  • Azerbaijani: ziyankar — likely to be damaging
  • Belarusian: шко́дны (škódny) — likely to be damaging
  • Belarusian: шкоднасны (škódnasny) — likely to be damaging
  • Belarusian: шкадлі́вы (škadlívy) — likely to be damaging
  • Bengali: ক্ষতিকর (khotikor) — likely to be damaging
  • Bengali: ক্ষতিকারক (khotikarok) — likely to be damaging
  • Bulgarian: вреден (vreden) — likely to be damaging
  • Bulgarian: пакостен (pakosten) — likely to be damaging
  • Catalan: nociu — likely to be damaging
  • Chinese Mandarin: 有害 (yǒuhài) — likely to be damaging
  • Chinese Mandarin: 不良 (bùliáng) — likely to be damaging
  • Czech: škodlivý — likely to be damaging
  • Danish: skadelig — likely to be damaging
  • Dutch: schadelijk — likely to be damaging
  • Finnish: vahingollinen — likely to be damaging
  • Finnish: haitallinen — likely to be damaging
  • French: dangereux — likely to be damaging
  • French: nuisible — likely to be damaging
  • French: nocif — likely to be damaging
  • French: préjudiciable — likely to be damaging
  • Galician: perxudicial — likely to be damaging
  • Georgian: საზიანო (saziano) — likely to be damaging
  • Georgian: მავნე (mavne) — likely to be damaging
  • German: schädlich — likely to be damaging
  • Ancient Greek: βλαπτικός (blaptikós) — likely to be damaging
  • Ancient Greek: δηλητήριος (dēlētḗrios) — likely to be damaging
  • Hindi: हानिकारक (hānikārak) — likely to be damaging
  • Hindi: अहितकर (ahitkar) — likely to be damaging
  • Hindi: अपकारी (apkārī) — likely to be damaging
  • Hindi: घातक (ghātak) — likely to be damaging
  • Hungarian: káros — likely to be damaging
  • Hungarian: kártékony — likely to be damaging
  • Icelandic: skaðlegur — likely to be damaging
  • Indonesian: berbahaya — likely to be damaging
  • Ingrian: vrednoi — likely to be damaging
  • Irish: aimhleasach — likely to be damaging
  • Irish: biniúil — likely to be damaging
  • Irish: damáisteach — likely to be damaging
  • Irish: díobhálach — likely to be damaging
  • Irish: dochrach — likely to be damaging
  • Irish: éigineáil — likely to be damaging
  • Irish: mímhaitheasach — likely to be damaging
  • Irish: olc — likely to be damaging
  • Irish: olcach — likely to be damaging
  • Irish: urchóideach — likely to be damaging
  • Italian: dannoso — likely to be damaging
  • Italian: nocivo — likely to be damaging
  • Japanese: 有害な (yūgai-na) — likely to be damaging
  • Javanese: mbebayani — likely to be damaging
  • Korean: 해로운 (haeroun) — likely to be damaging
  • Korean: 유해한 (yuhaehan) — likely to be damaging
  • Northern Kurdish: ziyanbexş — likely to be damaging
  • Latin: nocuus — likely to be damaging
  • Latin: noxius — likely to be damaging
  • Macedonian: штетен (šteten) — likely to be damaging
  • Malay: berbahaya — likely to be damaging
  • Māori: whakakino — likely to be damaging
  • Māori: whakawhara — likely to be damaging
  • Norman: niêsibl'ye — likely to be damaging
  • Norwegian: skadelig — likely to be damaging
  • Persian: مضر — likely to be damaging
  • Plautdietsch: schätlich — likely to be damaging
  • Polish: szkodliwy — likely to be damaging
  • Portuguese: prejudicial — likely to be damaging
  • Portuguese: nocivo — likely to be damaging
  • Portuguese: danoso — likely to be damaging
  • Portuguese: daninho — likely to be damaging
  • Romanian: nociv — likely to be damaging
  • Romanian: prejudiciabil — likely to be damaging
  • Romanian: dăunător — likely to be damaging
  • Romanian: vătămător — likely to be damaging
  • Romanian: păgubitor — likely to be damaging
  • Romanian: stricător — likely to be damaging
  • Russian: вре́дный (vrédnyj) — likely to be damaging
  • Russian: вредоно́сный (vredonósnyj) — likely to be damaging
  • Russian: зловре́дный (zlovrédnyj) — likely to be damaging
  • Serbo-Croatian: шко̀дљив — likely to be damaging
  • Serbo-Croatian: шко̏дан — likely to be damaging
  • Serbo-Croatian: ште̏тан — likely to be damaging
  • Serbo-Croatian: škòdljiv — likely to be damaging
  • Serbo-Croatian: škȍdan — likely to be damaging
  • Serbo-Croatian: štȅtan — likely to be damaging
  • Slovak: škodlivý — likely to be damaging
  • Slovene: škodljiv — likely to be damaging
  • Spanish: perjudicial — likely to be damaging
  • Spanish: perjudicador — likely to be damaging
  • Spanish: lesivo — likely to be damaging
  • Swedish: skadlig — likely to be damaging
  • Tagalog: mapaminsala — likely to be damaging
  • Tagalog: nakapipinsala — likely to be damaging
  • Tagalog: nakasisira — likely to be damaging
  • Tagalog: nakasasama — likely to be damaging
  • Telugu: హానికరమైన (hānikaramaina) — likely to be damaging
  • Turkish: zararlı — likely to be damaging
  • Turkmen: zyýanly — likely to be damaging
  • Ukrainian: шкідли́вий (škidlývyj) — likely to be damaging
  • Ukrainian: вадли́вий (vadlývyj) — likely to be damaging
  • Urdu: مضر — likely to be damaging