English edit

Etymology edit

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

Pronunciation edit

  • IPA(key): /ˈɹuː.ɪnəs/
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Adjective edit

ruinous (comparative more ruinous, superlative most ruinous)

  1. Causing ruin; destructive, calamitous
  2. Extremely costly; so expensive as to cause financial ruin.
    They were forced to completely replace the roof at ruinous expense.
  3. Characterized by ruin; ruined; dilapidated; as, an edifice, bridge, or wall in a ruinous state.

Synonyms edit

Derived terms edit

Translations edit

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Anagrams edit