different between deadness vs dreadness

English

dead +? -ness

deadness (usually uncountable, plural deadnesses)

The state of not being alive. Having the property of lifelessness, as if dead.
A lack of elasticity.
He complained that the deadness of the balls affected his game.
A lack of sparkle in a fizzy drink.
The deadness of the champagne made it undrinkable.
A lack of animation in a person.
The deadness of his expression told everything, without him having to speak.

dread +? -ness

dreadness (uncountable)

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