retarded
[rɪˈtɑ:rdɪd]
adj.
智力迟钝的;
智力发育迟缓的;
v.
使减速(retard的过去式和过去分词);
妨碍;
阻碍（某人/某事物）的进步或发展;
例句:
-
How backward I was, she feared possibly retarded.
来自A. Brien
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The progression of the disease can be retarded by early surgery.
早期手术可以抑制病情的发展。
-
He was so slow that many thought him mentally retarded.
他迟钝得很,许多人以为他智力低下.
-
Her death was retarded by five years because of good treatment.
由于良好的治疗,她多活了五年.
-
Human beings are the most retarded of species!
来自SA
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There was retarded growth and problems with fertility.
来自NEWYORKER