involved

动词 involve:

1. connect closely and often incriminatingly
   同义词：involve, affect, regard
2. engage as a participant
   同义词：involve
3. have as a necessary feature or consequence; entail
   同义词：imply, involve
4. require as useful, just, or proper
   同义词：necessitate, ask, postulate, need, require, take, involve, call for, demand
5. contain as a part
   同义词：involve
6. wrap
   同义词：involve
7. occupy or engage the interest of
   同义词：involve
8. make complex or intricate or complicated
   同义词：involve

形容词 involved:

1. connected by participation or association or use
2. entangled or hindered as if e.g. in mire
   同义词：mired
3. emotionally involved
4. highly complex or intricate
   同义词：Byzantine, convoluted, knotty, tangled, tortuous
5. enveloped

1. All those who are immediately involved will be informed of the decision.
   这个决定将被通知给所有直接有关的人。
2. I got involved in a quarrel about the price.
   我被卷入了一场有关价格的争吵。
3. They were involved in a long legal wrangle over payment.
   他们在付款问题上陷入长期纠纷。
4. Painting the room involved moving out the piano.
   粉刷房间就要把钢琴搬出去。
5. Complex, intricate, and involved.
   复杂的、错综的和涉及的
6. Like so many others involved in the case, she was out to make money.
   和涉及此案的其他许多人一样，她为的是赚钱。
7. She was quite positive about the amount of money involved.
   她对所涉及的钱数十分肯定。
8. The reporter is curious to know whether the official is involved in the case.
   这个记者很想知道那位官员是否涉及此案。

in.volved

adj.（形容词）
Complicated; intricate:
繁杂的：复杂的；错综的：
例句：
the involved procedure of getting a license.See Synonyms at complex
获取执照所需的繁杂的手续参见 complex

Curled inward; coiled or involute.
内卷的：向内卷的；盘绕的或内卷的
Confused; tangled.
纠缠的：纠缠不清的；绞在一起的
Connected by participation or association:
受牵扯的：因参与或合作而有关联的：
例句：
involved in a conspiracy.
卷进一场密谋

Emotionally committed:
感情上投入的：
例句：
He joined their organization but never really got involved.
他加入了他们的组织但在情感上他从未真正投入

Having a sexual relationship:
有性关系：
例句：
They see a lot of each other but aren`t involved.
他们往来频繁但并未发生关系

【引伸】
involv.edly