RichThesaurus
agonizingly
vs
burdensomely
agonizingly
adv
In an agonizing manner; in a way that causes agony.
burdensomely
adv
In a burdensome fashion.
How often have the words
agonizingly
and
burdensomely
occurred in a corpus of books?
(source:
Google Ngram Viewer
)