The term "passive-aggressive" can be translated into Chinese as:
被动攻击的
However, in a more natural and commonly used way, it’s often described as:
消极攻击 / 消极对抗
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消极攻击 (xiāo jí gōng jī): passive aggression (literally "negative/passive attack")
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消极对抗 (xiāo jí duì kàng): passive resistance or opposition
In casual speech, people might describe a passive-aggressive person as someone who:
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表面顺从，内心反抗 ("outwardly compliant, inwardly resistant")
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拐着弯表达不满 ("expresses dissatisfaction in a roundabout way")
