not necessarily

US /nɑːt ˈnes.ə.ser.ɪ.li/
UK /nɑːt ˈnes.ə.ser.ɪ.li/
"not necessarily" picture
1.

不一定, 未必

used to say that something is not always true or not true in every situation

:
Being rich does not necessarily make you happy.
富有不一定讓你快樂。
Just because he's quiet, it does not necessarily mean he's shy.
他安靜不一定意味著他害羞。