Fearful vs Barbarous - What's the difference?

Fearful is a related term of barbarous.

is that fearful is frightening while barbarous is not classical or pure.

* fearefull (obsolete) * fearfull (obsolete)

(fearfuller)

Frightening.

Frightened, filled with terror.

* 1590 , (Edmund Spenser), The Faerie Queene , III.4:

Those two great champions did attonce pursew / The fearefull damzell with incessant payns [...].

Terrible.

Tending to fear.

fearful boy

* (frightened) frightened, timid, timorous * See also

* *

* (obsolete) barbarouse

(en adjective)

Not classical or pure.

uncivilized, uncultured

Like a barbarian, especially in sound; noisy, dissonant.

I did but prompt the age to quit their cloggs

By the known rules of antient libertie,

When strait a barbarous noise environs me

Of Owles and Cuckoes, Asses, Apes and Doggs - (1673)

* barbarously * barbarousness