The word "marred" is correct and usable in written English, and it is usually used as a verb.
It means to be spoiled, damaged, or disfigured. Here is an example sentence: The antique vase was marred by a large scratch.
The first leg in Rome was marred by trouble when Feyenoord fans went on the rampage, causing damage to a 500-year-old fountain which experts said cannot be repaired.
"He continues to reject all claims of wrongdoing and we hold that the integrity of the court system was marred by the bias, slurs and factual inaccuracies in the election judgment".
His turbulent playing career was marred by clashes with authority, his erratic behaviour and candour quickly marking him out as a 'bad boy'.
Across China, similar cases of over-speculation and out-of-pocket spending by local leadership – often to boost political achievement – have marred economic prospects, and created swaths of "ghost towns".
The remaining minutes were frantic, if marred by some cynical time-wasting on behalf of the visitors.
After the 2013 election campaign was marred by vote irregularities, which required a re-run of the Western Australian Senate election, the Joint Standing Committee on Electoral Matters (JSCEM) held an inquiry into the 2013 federal election and the AEC.
The 225-vote majority, greeted with rare applause in the public gallery, was marred for the prime minister, who suffered a humiliating rebuff when more than half of the parliamentary Tory party declined to support the government on an issue he has personally invested in.
Instead of a battle of ideas, the EU has been marred by a vicious circle between anti-EU populism and technocratic agreements between member states that are afraid of their citizens.
The defence force has been marred by several scandals and serious instances of abuse in recent years, and has been subject to a review by the Australian sex discrimination commissioner, Elizabeth Broderick.
It was a hard-fought election contested by seven other candidates, and marred only by the fact that most of them said they would be voting for President Berdymukhamedov, who likes to style himself Arkadag, or "Protector", in a presumably unwitting nod to Oliver Cromwell.
Some will bridle at the mention of a Blairite – the group marred by spin and war.
