Question

pensive 【pensive】adj.忧愁的；哀思的The woman in this painting has a pensive smile.画中的女人有哀怨的笑容。

Accepted Answer

['pensɪv] 
pensivedeeply or seriously thoughtful
See that person staring out the window who looks so sad and lost in thought? He is pensive, the opposite of cheery and carefree.
If you've studied Spanish, you know that the verb pensar means "to think." If you're pensive, you might simply be thinking hard about something. Having no expression or maybe even frowning can be a result of being so engrossed in your thoughts — it might not reflect a melancholy attitude. Remember this the next time you're about to ask a pensive person, "What's wrong?" It could very well be nothing.
All forms of 'pensive' will appear on average once every 1108 pages.pensivepensivelypensiveness

Front	pensive
Pron	['pensɪv]
Back	【pensive】 adj.忧愁的；哀思的 The woman in this painting has a pensive smile. 画中的女人有哀怨的笑容。
Vocab	pensivedeeply or seriously thoughtful See that person staring out the window who looks so sad and lost in thought? He is pensive, the opposite of cheery and carefree. If you've studied Spanish, you know that the verb pensar means "to think." If you're pensive, you might simply be thinking hard about something. Having no expression or maybe even frowning can be a result of being so engrossed in your thoughts — it might not reflect a melancholy attitude. Remember this the next time you're about to ask a pensive person, "What's wrong?" It could very well be nothing. All forms of 'pensive' will appear on average once every 1108 pages. pensive pensively pensiveness

Pensive Pensɪv Adj.忧愁的；哀思的 Woman Painting Smile 画中的女人有哀怨的笑容 Deeply