Phrase guide

hard water

noun · 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

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1

noun

Meaning 1

Water with a high concentration of dissolved minerals, especially calcium, making it difficult to lather with soap.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: soft water

2

noun

Meaning 2

water that contains mineral salts (as calcium and magnesium ions) that limit the formation of lather with soap

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: soft water

Broader terms: water, H2O

History

Etymology

No etymology was provided for this word.

Across languages

Translations

25 source translations are retained for this English entry.

  • Chinese Mandarin: 硬水 (yìngshuǐ) — water with a high concentration of dissolved minerals
  • Danish: hårdt vand — water with a high concentration of dissolved minerals
  • Dutch: hard water — water with a high concentration of dissolved minerals
  • Finnish: kova vesi — water with a high concentration of dissolved minerals
  • French: eau dure — water with a high concentration of dissolved minerals
  • German: hartes Wasser — water with a high concentration of dissolved minerals
  • Greek: σκληρό νερό (skliró neró) — water with a high concentration of dissolved minerals
  • Gujarati: કઠિન પાણી (kaṭhin pāṇī) — water with a high concentration of dissolved minerals
  • Indonesian: air sadah — water with a high concentration of dissolved minerals
  • Irish: uisce crua — water with a high concentration of dissolved minerals
  • Japanese: 硬水 (kōsui) — water with a high concentration of dissolved minerals
  • Kazakh: кермек су (kermek su) — water with a high concentration of dissolved minerals
  • Korean: 경수 (gyeongsu) — water with a high concentration of dissolved minerals
  • Korean: 센물 (senmul) — water with a high concentration of dissolved minerals
  • Malay: air liat — water with a high concentration of dissolved minerals
  • Polish: twarda woda — water with a high concentration of dissolved minerals
  • Portuguese: água dura — water with a high concentration of dissolved minerals
  • Romanian: apă dură — water with a high concentration of dissolved minerals
  • Russian: жёсткая вода́ (žóstkaja vodá) — water with a high concentration of dissolved minerals
  • Spanish: agua dura — water with a high concentration of dissolved minerals
  • Swedish: hårt vatten — water with a high concentration of dissolved minerals
  • Thai: น้ํากระด้าง (náam-grà-dâang) — water with a high concentration of dissolved minerals
  • Turkish: sert su — water with a high concentration of dissolved minerals
  • Ukrainian: тверда́ вода́ (tverdá vodá) — water with a high concentration of dissolved minerals
  • Welsh: dŵr caled — water with a high concentration of dissolved minerals