attentive

careful, cautious, attentive, prudent

这些形容词均含有“小心的，谨慎的”之意。
careful: 侧重做事谨慎、留心，特别注意一些细节地方。
cautious: 着重考虑事情的后果，谨慎留意，防止出差错。
attentive: 指认真地注意地倾听别人的意见，留心别人的需要等。
prudent: 指遇事审慎，思考计划周密，不贸然行事。

considerate, thoughtful, attentive

这些形容词均含“关心的，体贴的”之意。
considerate: 指能设身处地为别人着想，给予同情或谅解。
thoughtful: 指为他人着想，主动关怀，做有益于他人的事。
attentive: 指对人关怀备至，热情周到，这可能出于真诚，也可能出于私利。

形容词 attentive:

1. (often followed by `to') giving care or attention
2. taking heed; giving close and thoughtful attention
   同义词：heedful, thoughtful, paying attention

1. My husband is very attentive when he's at home, but when he's away on business he never even thinks to phone me-out of sight out to mind.
   我丈夫在家时对我很关心，但一出差从不想着给我打电话——真是眼不见，心不想。
2. Alert to circumstances; attentive.
   对周围环境敏感的; 留心的
3. You should be attentive to what your parents have said.
   你应该注意倾听父母所说的话。
4. He is attentive to his little brother.
   他很关心他的小弟弟。

at.ten.tive

adj.（形容词）
Giving care or attention; watchful:
注意的，专心的，留心的：小心或注意的；关注的：
例句：
attentive to detail.
留心细节

Marked by or offering devoted and assiduous attention to the pleasure or comfort of others.See Synonyms at thoughtful
关心的，体贴的：留心，给予完全的、殷勤的注意使他人愉悦和舒适参见 thoughtful
Expressing affectionate interest through close observation and gallant gestures:
殷勤的：通过热切的关注及殷勤的举止表达爱慕情感：
例句：
He played the attentive suitor, complete with roses and bonbons.
他以玫瑰花和夹心糖扮演了一个殷勤的求婚者

【引伸】
atten.tively
adv.（副词）
atten.tiveness
n.（名词）