1.showing lack of careful thought;

the debate turned into thoughtless bickering

2.marked by or paying little heed or attention;

We have always known that heedless self-interest was bad morals; we know now that it is bad economics--Franklin D. Roosevelt

3.without care or thought for others;

the thoughtless saying of a great princess on being informed that the people had no bread; `Let them eat cake'

4.(usually followed by `of') without due thought or consideration;

careless of the consequences

1 . 不是有失分寸啊

That thoughtlessepisode did nothing to diminish what Mr Caro calls 那件有失分寸的小事絲毫沒有化解二人之間的仇恨 thoughtless不是有失分寸啊,輕率? 引用.

2 . 無思想的

thoughtful type 思想型thoughtless無思想的thoughtlessness 思想缺失癥

3 . 輕率的

thoughtful 認真思考的，沉思的，體貼的thoughtless欠考慮的，輕率的，不體貼人的thread 線，線索，思路，螺紋，穿過

4 . 欠考慮的

thoughtfulness 思慮thoughtless欠考慮的thought-out 深思熟慮

1 . 沒頭腦的人

A few thoughtless people commented on his absence ., 有幾個沒頭腦的人談到了他的曠工.

1 . 輕率的話語

I was prepared to forgive one thoughtless remark , but she kept heaping insult on insult , so I asked her to leave my house .我本來準備原諒她輕率的話語，而她卻接二連三地辱罵我，于是我請她離開了我的家。

1 . 雖然他不考慮積攢金錢和物質財富

翻譯詞典|在線詞典：在中國最大翻譯語料庫（中國譯典... ... The works of people who eulogize what is bright are not necessarily great and the works of those who depict the dark are not necessarily paltry."歌頌光明者其作品未必偉大，刻畫黑暗者其作品未必渺小。” Thoughtless of: money or the accumulation of mat

1 . 太不體諒

it was very thoughtless of you to keep her waiting so long ., 你讓她等那麼久也太不體諒人了.