英汉解释

adj. 智力迟钝的；发展迟缓的

同义词

n. mentally retarded

反义词

a.   precocious

参考例句

1. He is completely retarded.
他反应十分迟钝。
2. Small molecules are retarded from leaving the column.
小的分子被阻滞在层折柱上。
3. The dog receives special privileges.
狗享有特殊待遇。他会定时地被释放，但好象他非常乐意地回来。很显然，他是弱智的。

英英解释

n.
  1. people collectively who are mentally retarded
  2. relatively slow in mental or emotional or physical development

网络释义

retarded
反应迟钝的; 减速的; 迟钝; 智力迟钝的;
Gas retarded
气体延迟反冲式;
retarded cement
缓凝水泥; 慢凝水泥;
retarded ignition
延迟点火; 延迟着火; 迟点火;
retarded combustion
延迟燃烧; 延缓燃烧; 减速燃烧;