love child
US /ˈlʌv ˌtʃaɪld/
UK /ˈlʌv ˌtʃaɪld/

1.
私生子, 非婚生子女
a child born to parents not married to each other
:
•
In the past, a love child often faced social stigma.
过去,私生子常常面临社会污名。
•
The term 'love child' is now less common and often considered outdated.
“私生子”这个词现在不那么常见,通常被认为过时了。