premeditated 

英汉解释

adj. 预谋的；预先考虑的；经预先计划的
v. 预谋（premeditate的过去式和过去分词）；预先考虑

反义词

a.   unpremeditated

参考例句

1. He faces two counts of premeditated murder.
他面临着两项谋杀罪的指控。
2. Sincere compliments are spoken from the heart and are not premeditated . When offering a compliment , let your emotions speak instead of calculating your words.
真诚的赞美是从内心深处发出的，不是预谋的，当你要赞美的时候，让你的感情说出来而不是去考虑你的用词。
3. First-degree murder is increasingly coming to cover more than planned and deliberated killings ("premeditated" and "malice aforethought" were older ways of saying the same thing).
一级谋杀越来越超出原有界定的犯罪定义，即有计划和蓄意杀人（过去对这种犯罪的描述是“事先策划的”和“预谋”）。

英英解释

adj.
  1. characterized by deliberate purpose and some degree of planning

网络释义

premeditated
预谋的; 预先想过的; 宣布为非法; 预谋的，事先计划的;
premeditated intent
预谋故意; 蓄意;
premeditated intention
预谋故意;
premeditated murder
故杀; 谋杀重罪; 谋杀; 预谋杀人;
premeditated attack
预谋攻击;