intentional /ɪnˈtɛnʃənl̟/ adjective Learner's definition of INTENTIONAL
: done in a way that is planned or intended : deliberate故意的;存心的;蓄意的 -
an intentional drug overdose故意过量用药
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an intentional and premeditated killing蓄意谋杀
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I apologize for the omission of your name from the list. It was not intentional.很抱歉在名单上遗漏了你的名字。我不是故意的。
— opposite unintentional