If you describe a person or their attitude or behaviour as unconventional, you mean that they do not behave in the same way as most other people in their society.
双语例句
例：
Linus Pauling is an unconventional genius.
莱纳斯·鲍林是个奇才。
例：
He was known for his unconventional behaviour.
他曾因行为另类而出名。
2.?（做法）非常规的
An unconventional way of doing something is not the usual way of doing it, and may be surprising.
双语例句
例：
The vaccine had been produced by an unconventional technique.
这种疫苗是用非常规的技术生产出来的。
例：
Despite his unconventional methods, he has inspired students more than anyone else.