He sees a situation (rain), and he does the logical consequence .
Pierre tightened his scarf. (It is raining, yet I am going to the picnic.) pourtant antonyme
Antoine pointed to the window. (It is raining, so/therefore I am staying home.) He sees a situation (rain), and he does
Si « pourtant » souligne un paradoxe, ses contraires soulignent que l'événement B est le résultat normal de l'événement A. He sees a situation (rain)
Antoine looked out the window and saw Pierre shivering in the park. He shook his head. (Pierre is wet, so/therefore he should come back inside.)