1.
active, proactive, self-initiated
Acting on one's own initiative rather than passively waiting. The opposite of 受動的 (passive). Used in formal and academic contexts to describe an approach where the subject takes the initiative.
I don't want you to just wait for instructions — I want you to act proactively.
Usage
The opposite of 受動的 (passive). In grammar, 能動態 means the active voice and 受動態 means the passive voice.
Compared to 積極的 (proactive, enthusiastic), 能動的 is more formal and academic. 積極的 is the everyday word for being proactive or enthusiastic, while 能動的 is used more in educational, academic, or technical discussions.