1.不顾及他人的;欠考虑的 If you describe someone as thoughtless, you are critical of them because they forget or ignore other people's wants, needs, or feelings.
thoughtlessly They thoughtlessly planned a picnic without him... 他们太粗心，安排野餐竟然没有带上他。 Nobody is perfect, and everyone acts thoughtlessly on occasion. 人无完人，谁都难保不偶尔疏忽一次。
