Standard Lemma guide

ruinous

adj · 5 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.

  • /ˈɹuː.ɪnəs/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: R UW1 AH0 N AH0 S Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Causing ruin; destructive, calamitous.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Extremely costly; so expensive as to cause financial ruin.

Definition source: English Wiktionary via Wiktextract

Examples

  • They were forced to completely replace the roof at ruinous expense.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

Characterized by ruin; ruined; dilapidated; as, an edifice, bridge, or wall in a ruinous state.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adjective satellite

Meaning 4

causing injury or blight; especially affecting with sudden violence or plague or ruin

Definition source: Princeton WordNet 3.0

Examples

  • the blasting effects of the intense cold on the budding fruit
  • the blasting force of the wind blowing sharp needles of sleet in our faces
  • a ruinous war

Meaning relationships

Synonyms: blasting

Antonyms: none provided

5

adjective satellite

Meaning 5

extremely harmful; bringing physical or financial ruin

Definition source: Princeton WordNet 3.0

Examples

  • a catastrophic depression
  • catastrophic illness
  • a ruinous course of action

Meaning relationships

Synonyms: catastrophic

Antonyms: none provided

History

Etymology

From Middle English ruynous, from Old French ruinos, ruineus, from Latin ruīnōsus. By surface analysis, ruin + -ous.

Across languages

Translations

16 source translations are retained for this English entry.

  • Asturian: ruinosu — destructive
  • Bulgarian: разрушителен (razrušitelen) — destructive
  • Bulgarian: гибелен (gibelen) — destructive
  • Catalan: ruïnós — destructive
  • French: ruineux — destructive
  • Hindi: नाशक (nāśak) — destructive
  • Italian: rovinoso — destructive
  • Latin: calamitōsus — destructive
  • Latin: perniciosus — destructive
  • Norman: ruinneux — destructive
  • Portuguese: ruinoso — destructive
  • Sardinian: arruinósu — destructive
  • Scottish Gaelic: sgriosail — destructive
  • Spanish: ruinoso — destructive
  • Venetan: rovinóxo — destructive
  • Spanish: ruinoso — dilapidated