Meriness. Which is a feeling and abstract noun. Whereas the word merry is just an adjective
merrily
Yes, the noun astonishment is an abstract noun, a word for an emotional reaction.
Is undergone an abstract noun
The abstract noun is criticism.
The abstract noun is obligation.
merrily
Yes, the noun astonishment is an abstract noun, a word for an emotional reaction.
Is undergone an abstract noun
Concrete noun
The abstract noun is criticism.
The noun 'hopefulness' is an abstract noun, a word for an emotion.
The abstract noun is obligation.
Abstract noun of hopeless
Friendship has not abstract noun because It is a abstract noun
The abstract noun form is tourism.
For the adjective happy, change Y to I and add -ness to make happiness. (an abstract emotion)
The abstract noun for the adjective vacant is vacantness. Another abstract noun form is vacancy.