meaningful
US /ˈmiː.nɪŋ.fəl/
UK /ˈmiː.nɪŋ.fəl/

1.
having a serious, important, or useful quality or purpose
:
•
She found a meaningful career in social work.
•
They had a long and meaningful conversation.
2.
expressing something, especially something important, without words
:
•
He gave her a meaningful look.
•
There was a meaningful silence between them.