"baleful consequences" is correct and usable in written English.
You can use it to describe an outcome that is negative and detrimental. Example sentence: The poor decisions made by the company's leadership had baleful consequences for the company's bottom line.
Guardians of the social order warned that this development would have baleful consequences.
But Ireland is still suffering from the baleful consequences of its bank rescue in other ways.
Authenticity now dominates our way of viewing ourselves and our relationships, with baleful consequences.
Worse than that, the glorification of the second world war has had practical and baleful consequences.
The fact that this isn't much of a surprise is one of the baleful consequences of your presidency.
The international community has turned a blind eye to the Horn of Africa for too long, with baleful consequences.
The 2010 hung parliament was nothing more or less than a baleful consequence of the political failure of all three parties.
The baleful consequence of the policy was that the housing market took wings and the household sector loaded up on debt that proved to be unsustainable.Mr King's trenchant critique has merit, but it does not necessarily mean that central bankers have acted wrongly since the crisis.
But there will not, sadly, be any more comprehensive effort to account for the noxious side-effects of oil.For spills are hardly the most baleful consequence of America's oil addiction: global warming and the funding of foreign despots surely come higher up the list.
As it is being prosecuted, the war has other baleful economic consequences.
The gay-marriage controversy has had a baleful effect on current men's fashion.
