Here is an example sentence:
The large man was a fearsome spectacle, as he was carrying an axe.
Or
The tiger was a fearsome beast because it was getting ready to pounce.
he was very fearsome .his eyes made it more worse.
The fearsome wolves threatened the farmer's livestock.
The triceratops was in a ferocious fight with the fearsome Tyrannosaurus Rex.
Working for an irascible boss can be very difficult indeed.
the verb is can be
The many-headed hydra is a fearsome creature.
He could tell that it was a fearsome predor by its large teeth and claws and the ease with which it had killed a full grown antelope.
A word created by Lewis Carroll in "Jabberwocky" (Through the Looking Glass, 1872), it has no precise definition. Some suggest it means "fearsome" as in "manx-like".
As titanic means enormous, you could say... 'The fearsome dinosaur was titanic and scary.'
Fearsome means frightening
Fearsome is an adjective. It describes a noun or pronoun that causes fear--a fearsome noise.
Grendel is the fearsome monster in the Old English epic poem "Beowulf."