denier
US /dɪˈnaɪ.ɚ/
UK /dɪˈnaɪ.ər/
名詞
否定する人
a person who says that something did not happen or that a situation does not exist, especially something that most people agree did happen or does exist:
例:
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He has compared climate change deniers to people who denied the link between HIV and Aids.