1 reasonable or acceptable 合理的；可以接受的: a legitimate excuse/question/concern 可以接受的理由；合乎逻辑的问题；合情合理的担心

2 allowed by law 合法的: Could he earn so much from legitimate business activities? 他要是做正当生意，哪里能赚得了这么多钱？ ☞Look at lawful and legal. 参看lawful及legal。

3 (old-fashioned 旧) (used about a child) having parents who are married to each other （指子女）婚生的 [OPP] illegitimate 反义词为illegitimate➔legitimacy /lɪˈdʒɪtɪməsi ||; lɪˈdʒɪtəməsɪ/ noun [U]: I intend to challenge the legitimacy of his claim. 我欲对他的要求的合法性提出质疑。 ➔legitimately adv