The adjective is quick.
A quick look in a dictionary will tell you the answer.
The noun form for the adjective authentic is authenticity.
The noun form of the adjective 'dangerous' is dangerousness.The word 'dangerous' is the adjective form of the noun danger.The noun form of the adjective 'childish' is childishness.The word 'childish' is the adjective form of the noun child.The noun form of the adjective 'beautiful' is beautifulness.The word 'beautiful' is the adjective form of the noun beauty.
Quickly is a verb.
The abstract noun form of the adjective unique is uniqueness.
The abstract noun form for the adjective convenient is convenience.
No, hurried is a verb form or adjective. The noun form is "hurry" (a hurry).
The word 'sudden' is an adjective, a word used to describe a noun as occurring or done quickly and unexpectedly.The noun form for the adjective sudden is suddenness.
No, the word 'sudden' is not a noun; sudden is an adjective, a word that describes a noun (a sudden storm).The noun form for the adjective sudden is suddenness.
The noun form for the adjective authentic is authenticity.
No, speedy is an adjective. The noun form is speed, or the gerund speeding.
The noun form of the adjective 'dangerous' is dangerousness.The word 'dangerous' is the adjective form of the noun danger.The noun form of the adjective 'childish' is childishness.The word 'childish' is the adjective form of the noun child.The noun form of the adjective 'beautiful' is beautifulness.The word 'beautiful' is the adjective form of the noun beauty.
The noun form of the adjective 'wide' is wideness.A related noun form is width.
Quickly is a verb.
The adjective form of the noun ability is "able".
The noun form of the adjective 'comfortable' is comfortableness.The word 'comfortable' is the adjective form of the noun comfort.
The abstract noun form of the adjective unique is uniqueness.
The abstract noun form for the adjective convenient is convenience.