"Careful"本身就是一个名词，表示的是“小心”或“谨慎”的意思。而它的比较级和最高级分别是"more carefully"和"most carefully"。

careful的名词是什么

careful的名词是：

carefulness

美 /ˈkerflnəs/

英 /ˈkeəflnəs/

n.

仔细；慎重

另外，"Careful"的反义词是"careless"，意思是“粗心的”或“不小心的”。

Careful的例句

1、In spite of his premeditated carefulness, the floor would now and then creak.

尽管他事先策划周密，但地板还是会不时吱嘎作响。

2、He is full of vigor but fails in carefulness.

他劲头很足，但不够仔细。

3、The boy is appreciated by his teacher for his carefulness in his homework.

这个男孩因为功课做得认真而受到老师的称赞。