The Chofetz Chaim 2:9 cautions against adding even one word ! Or showing in any way that you are backing some negative statement.
The closer a statement is to truth , the fewer words are needed to express it - & it may still be forbidden words.
The number of words in the 10 Commandments are 172. We learn in Pirkei Avos 1:15 to always train ourselves to say the most with the least amount of words.
You will benefit in many ways. Besides avoiding Loshon Hora , your communication will become crystal clear & your results. .
Now may be a good time for a gem of Torah study.
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