ruinous
adjective | /ruinous/
Advanced WordsMEDIUM
causing or likely to cause collapse or destruction; extremely costly or damaging
ruinous
adjective | /ruinous/
Advanced WordsMEDIUMcausing or likely to cause collapse or destruction; extremely costly or damaging
Learning Progress
Synonyms
destructivedisastrousdevastatingcalamitous
Antonyms
beneficialharmlessrestorative
Examples
"The mismanaged investment proved ruinous for the small firm."
"Ruinous storms destroyed large areas of coastal farmland."
Mnemonic Trick
RUINOUS → RUIN + OUS — causing ruin or great damage.
Etymology
From Old French ruinous.
Used for devastating or financially disastrous consequences.
Source: Advanced WordsAdded: 9/28/2025
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