Adverbs are hard to tell and google.
I compile some adverbs that being used in easy articles.
果たして
As we expected
そもそも
To begin with
さて
Well
どうせ
Anyhow
はっきり
Clearly
ゆったり
Relaxed
せっかく
Especially
むしろ
Better; Rather
まもなく
Soon
長らく
For a long time
元来
Originally
かなり
considerably
一度に
all at once
古く
Formerly
とても
very
なんとなく
somehow
ただ
Only
細かく
Finely
さいしょに
First
ただち
Immediately
がっしり
Firmly