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Definition of: ruinous
(r′in·əs) adjective
1. Causing or tending to ruin.
2. Falling to ruin; decayed; dilapidated; ruined. See synonyms under PERNICIOUS. [<OF ruineux <L ruinosus]
—ru′in·ous·ly adverb
—ru′in·ous·ness noun
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