what is the difference between adjective and adjectival phrases? i do not understand

[indranil]

Adjectives and adjectival phrases both describe the noun or pronoun but i can not understand the differences between them. please explain it grammatically.

Thank you.

 

[5jj]

'Adjectival phrase' can mean more than one thing: Adjectival phrase - Wikipedia, the free encyclopedia

 

[Rover_KE]

An adjective is a single describing word like green and an adjectival phrase is a descriptive phrase of more than one word, like dark blue.

Rover