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likely to harm or kill someone, or to damage or destroy something
causing a lot of damage or harm
causing physical harm to something so that it is broken, spoiled, or injured
involving the possibility of danger, harm, or failure
dangerous, especially to people’s health or safety
causing severe damage or loss
mainly literary very dangerous
formal causing harm or damage
in competitive cycling, the illegal use of motors on bikes in order to gain advantage over other riders
in golf, a small wooden or plastic object that you push into the ground and place the ball on so...
be reversed; be as if it had never happened
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Free thesaurus definition of dangerous or harmful from the Macmillan English Dictionary - a free English dictionary online with thesaurus and with pronunciation from Macmillan Publishers Limited.