/ ˈbeɪsɪkli; NAmE / adverb
1.
in the most important ways, without considering things that are less important
SYN essentially :
Yes, that's basically correct.
The two approaches are basically very similar.
There have been some problems but basically it's a good system.
2.
used when you are giving your opinion or stating what is important about a situation :
Basically, there's not a lot we can do about it.
He basically just sits there and does nothing all day.
And that's it, basically.