illegitimate
US
UK illegitimate adj: (born to unmarried parents)
SC 非婚生的 fēi hūn shēng de
SC 私生的 fēi hūn shēng de，sī shēng de
Herman's first daughter was illegitimate, because he was unmarried at the time of her birth.
illegitimate adj: (unlawful, not legal)
SC 非法的 fēi fǎ de
SC 不合法的 fēi fǎ de ，bù hé fǎ de
The court ruled the marriage illegitimate because the couple never signed the marriage contract.
illegitimate child n: (child born to unmarried parents)
SC 非婚生子女 fēi hūn shēng zǐ nǚ
SC 私生子女 fēi hūn shēng zǐ nǚ，sī shēng zǐ nǚ
Many years ago, she had an illegitimate child who was adopted by a couple with no children of their own.