英汉解释

adj. 不注意的；不留心的

同义词

a. reckless，thoughtless，unheeding

反义词

a.   attentive，heedful，paying attention，thoughtful

参考例句

1. Don't stumble, you heedless little thing.
别绊倒，你这个粗心的小东西。
2. Said of speaking loosely, heedless of the facts.
比喻不顾事实，不负责任地乱说。
3. Madame Olenska, heedless of tradition, was attired in a long robe of red velvet.
奥兰斯卡夫人无视这种习俗，她穿的是红色天鹅绒晨衣。

英英解释

adj.
  1. marked by or paying little heed or attention
  2. characterized by careless unconcern

网络释义

heedless
不注意的; 不小心的; 不小心; 不注意;
crackbrained heedless unscrupulous
不谨慎的;
heedless unmindful unthinking unwarily
不留心的;
heedless of consequences
不知死活;
heedless inadvertent inattentive reckless unmindful unwary
不注意的;