Adjective (English: adj.) is a kind of part of speech, which is mainly used to describe or modify nouns or pronouns, indicating the nature, state, characteristics or attributes of people or things, and is often used as attribute, predicate or complement.
(1) adjectives can generally be modified with "no" and "very". Such as "not big, big, not vivid, very vivid". A few state adjectives need not be modified by "no" and "very", such as "not cold, very cold, not white, very white, not elementary, very elementary".
(2) Nouns can be modified, often as predicates or attributes. Such as "big eyes, tall buildings, cold sour plum soup, primary title."
(3) Some adjectives can overlap. Such as "big, long and high".
(4) You can bring an object.