The adjective forms for the noun time are timely and timeless.
The noun 'time' can function as an adjective, for example time release, time management, time payments, etc.
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.
The noun form of the adjective 'wide' is wideness.A related noun form is width.
The word 'ripe' is an adjective, a word that describes a noun (a ripe peach, the time is ripe).The noun form for the adjective ripe is ripeness.
The noun form of the adjective 'comfortable' is comfortableness.The word 'comfortable' is the adjective form of the noun comfort.
The noun form of the adjective 'modest' is modestness.A related noun form is modesty.
The abstract noun form for the adjective convenient is convenience.
The abstract noun form of the adjective unique is uniqueness.
The noun form for the adjective hilarious is hilariousness. A related noun form is hilarity.
The adjective form for the noun nation is national.
The noun form of the adjective close is closeness.
The word 'weakest' is the superlative form of the adjective 'weak':positive: weakcomparative: weakersuperlative: weakest