1 easy to understand, do or use; not difficult or complicated 容易明白、做或使用的；简单的: This dictionary is written in simple English. 这本词典用简单的英语编写成。a simple task/method/solution 简单的任务╱方法╱解决办法I can't just leave the job. It's not as simple as that. 我不能把这任务搁下不管。事情不是这样简单。

2 without decoration or unnecessary extra things; plain and basic 式样简单的: a simple black dress 朴素的黑色连衣裙The food is simple but perfectly cooked. 食物很简单，但煮得很好。

3 used for saying that the thing you are talking about is the only thing that is important or true 纯粹的: I'm not going to buy it for the simple reason that (= only because)I haven't got enough money. 我不会买纯粹是因为我没有足够的钱。

4 (used about a person or a way of life) natural and not complicated （指人或生活方式）简朴的，朴素的: a simple life in the country 乡下的简朴生活

5 not intelligent; slow to understand 不聪明的；迟钝的

6 (grammar语法) used to describe the present or past tense of a verb that is formed without using another verb(an auxiliary verb), as in ‘She loves him’ and ‘He arrived late.’ 简单的（指动词的现在时或过去时形式不用助动词，如在She loves him及He arrived late中）: the simple present/past tense 简单现在时╱过去时