1530s, "born out of wedlock," formed in English (and replacing earlier illegitime, c. 1500), modeled on Latin illegitimus "not legitimate" (see il- + legitimate). Sense of "unauthorized, unwarranted" is from 1640s. Phrase illegitimi non carborundum, usually "translated" as "don't let the bastards grind you down," is fake Latin (by 1965, said to date from c. 1939) (Carborundum was a brand of abrasives).
实用例句
1. They represented a ruthless and illegitimate regime that could not remain forever.
他们代表了一个残暴的非法政权，这样的政权是不可能长久的。
来自柯林斯例句
2. illegitimate use of company property
不正当使用公司财产
来自《权威词典》
3. It is quite illegitimate to argue that the government had no choice.
辩称政府别无选择是十分不当的.
来自《简明英汉词典》
4. About 68 per cent of illegitimate births were jointly registered by both parents.
大约有68%的私生子是由父母双方共同登记的.
来自《简明英汉词典》
5. The election was dismissed as illegitimate by the opposition.
