completely
adv. degree A2 Elementary Oxford US //kəmˈpɫitɫi// UK //kəmplˈiːtli// com·plete·ly
adv. to the greatest degree possible. You use it to show that something is finished or 100% true.
adv. to a full or entire extent; totally and without exception.
The room is completely empty.
I completely forgot about our meeting because I was so busy with the new project.
The landscape was completely transformed by the heavy snowfall, leaving the familiar landmarks unrecognizable under a thick white blanket.
From complete + -ly.
Usage
Degree adverb — typically placed before the adjective, adverb, or verb it modifies.
Pitfall
I completely am happyI am completely happyAdverbs of degree usually follow the verb 'to be' rather than preceding it.