1. 业余的：amateur 业余爱好者= dilettante,dabbler | amateurish 业余的, | amorous 恋爱的

2. 非专门的：amateur 业馀者 | amateurish 非专门的 | amateurishextracurricularsparetime 业余的

3. 业余爱好的,不熟练的：amalgamate 合并,混合 | amateurish 业余爱好的,不熟练的 | ambidextrous 两手都善用的

4. 业余的, 非职业的, 不熟练的：amateur || 业余爱好者, 业余艺术家 | amateurish || 业余的, 非职业的, 不熟练的 | amateurism || 业余性, 非职业的作为

1. 业余水准的；不熟练的；（像）外行的
[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;If you describe something as amateurish, you think that it is not skilfully made or done.

[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;e.g. We have to develop a less amateurish approach to our organisations...
[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;我们必须使我们对待自己组织的态度变得较为专业。
[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;e.g. The paintings looked amateurish.
[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;这些画作看起来只具备业余水准。

adj

1. lacking professional skill or expertise

[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;e.g. a very amateurish job
[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;inexpert but conscientious efforts
[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;an unskilled painting

[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;Synonym: amateurinexpertunskilled