- Causing, or tending to cause, ruin; destructive; baneful;
pernicious; as, a ruinous project. - Characterized by ruin; ruined; dilapidated; as, an
edifice, bridge, or wall in a ruinous state. - Composed of, or consisting in, ruins.
Meaning of 'ruinous' (Princeton's WordNet)
1 . ruinous
[ s]
Meaning (1): - extremely harmful; bringing physical or financial ruin
Example in sentence:
a catastrophic depression;
a ruinous course of action;
catastrophic illness
Meaning (2): - causing injury or blight; especially affecting with sudden violence or plague or ruin
Example in sentence:
a ruinous war;
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