adj.没有考虑的；轻率的；粗心的；不体贴人的
It was thoughtless if well-meaning. 用意虽好，考虑欠周。
Thoughtless speeches may work great mischief. 不加考虑的言论可能严重时危害人心。
It was thoughtless of you to forget your mother's birthday. 你太粗心了，居然连你妈妈的生日也忘了。
It was very thoughtless of you to keep her waiting so long. 你让她等那么久也太不体谅人了。
adv.轻率地；无思想地
n.不体贴；欠考虑
