The word 'frightened' is the past participle, past tense for the verb to frighten. The present participle of the verb also functions as an adjective.
The abstract noun form of the verb to frighten is the gerund, frightening.
A related abstract noun is fright.
Frightened
Frightening
Is cheer an abstract noun or a concrete noun??????
Yes, the noun astonishment is an abstract noun, a word for an emotional reaction.
Fright.
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.
Friendship has not abstract noun because It is a abstract noun
Abstract noun of hopeless
The abstract noun form is tourism.