Simple Definition of ruinous
: causing or likely to cause damage or destruction
: costing far too much money
: falling apart : badly damaged
Examples of ruinous in a sentence
The house has fallen into a ruinous state.
<a ruinous miscalculation of the financial markets left them bankrupt>
First Known Use of ruinous
RUINOUS Defined for Kids
Definition of ruinous for Students
: causing or likely to cause collapse or destruction <a ruinous war>
Seen and Heard
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