adjective = 形容詞
sincere = 誠実な
Examples（例文）
I don't know exactly where this word came from, but I've seen it in advertisements for an English conversation school. Please note that it is not an English word! It seems to express an idea in English that we might express using the words warm, friendly, or compassionate.
There are several adjectives that use the word "heart":
warmhearted - This is usually used to talk about someone who is very kind and friendly.
Yukie is really warmhearted--she always listens to her friends' problems.
heartwarming - This is an adjective that is used to describe something that makes us happy or makes us feel good.
The movie was a heartwarming story about a boy and his dog, and I left the theater in a very pleasant mood.
heartfelt - This is an adjective that is often used to describe someone's action as being sincere.
Gary gave a short but very heartfelt speech when he was given the award.
(Spelling note: All of the words warmhearted, heartwarming, and heartfelt may be spelled with or without a hyphen--it depends on which dictionary you check.)
Exercises （練習）
Please choose the best answer.
