tâtonner - to fumble, search, make your way

Et pourtant, voilà aussi une Union qui tâtonne, une Union qui peine à parler d'une seule voix, une Union qui dilue son message.

However, what we have here is a union which is struggling to make its way, a union which can barely speak with one voice, a union which dilutes its message.

 

On ne peut le nier : à 18-20 ans, un jeune ne sait pas toujours ce qu'il veut faire, il tâtonne. 

You can't deny that around 18 to 20 years old, a young person still doesn't know what he wants to do; he's searching.