Passive Aggressive

Passive-aggressive behavior
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Passive-aggressive behavior is the indirect expression of hostility, such as through procrastination, stubbornness, sullen behavior, or deliberate or repeated failure to accomplish requested tasks for which one is (often explicitly) responsible.

For research purposes, the Diagnostic and Statistical Manual of Mental Disorders (DSM) revision IV describes passive-aggressive personality disorder as a "pervasive pattern of negativistic attitudes and passive resistance to demands for adequate performance in social and occupational situations."

Passive-aggressive behavior often utilizes malicious compliance; that is, veiling one's intent to not do something in performing the specific task in such a way that an unwanted result is caused.