impediment
/ɪmˈpedɪmənt/noun
1- a hindrance or obstruction in doing something妨碍, 阻碍, 障碍物：
a serious impediment to scientific progress.
科学进步的严重阻碍。
1.1
- （亦作speech impediment）a defect in a person's speech, such as a lisp or stammer语言障碍（如咬舌、口吃等）。
派生词
impedimental
adjective词源
late Middle English: from Latin impedimentum, from impedire （see IMPEDE）.