1. 否定论者：negativism 抗拒症 | negativist 否定论者 | negativistic 否定论

2. 否定论者,消极主义者：exclusivist排外主义者,排他主义者 | negativist 否定论者,消极主义者 | relativist相对论者

3. 消极主义者：negativism 否定论 | negativist 消极主义者 | negativity 消极性

noun

1. someone who is resigned to defeat without offering positive suggestions

    Synonym: defeatist

2. someone who refuses to do what is asked or does the opposite of what is asked