This is the 2317th most frequent Dutch word.
schijnbaar
Seemingly; apparently.
'Schijnbaar' here implies that based on external indications, it appears that he has read the book, but there is doubt about whether he understood or retained the content.
Schijnbaar heeft hij het boek gelezen, maar hij kent de inhoud niet.
Apparently, he read the book, but he doesn't know its contents.
Here, 'schijnbaar' suggests that the wet ground gives the impression that it rained earlier.
Schijnbaar regende het eerder, want de grond is nat.
It seemingly rained earlier, as the ground is wet.
In this sentence, 'schijnbaar' denotes that the answer appeared simple on the surface, though it was actually complex.