Use the noun directly as an adjective. Do not change the form of the noun; use it as is, but as an adjective. Many nouns in Chinese also can play the role of adjectives. For example, the word "jin4shen1," meaning depth can play the role of either a noun and adjective in a sentence.
Add a "de5" to the end of the noun. Using "de," as in "ren2lei4de5" (mankind's), shows that you intend to use a noun as an adjective. This way of converting a noun to an adjective also can show a state of possession, such as in "zi3nv3de5" (children's).
Add a "xing2" to the end of a noun. The word "xing2" (as in "jiao3xing2," meaning "angle") has the meaning of "pattern" and can emphasize the physical or abstract form related to the noun in-question. For example, the Chinese word for "notebook computer" uses the modified version of notebook, "bi3ji4," adding a "xing2" onto the end. The full word for "notebook computer" then becomes "bi3ji4xing2 dian4nao3."
Add a "shi4" to the end of the noun. The Chinese "shi4," as in "zhong1shi4" (Chinese-style), means "style" and can be used just as easily as you use "style" in English. For example, "shi4" can be placed after the word for freedom, "zi4you2," to yield an adjective meaning "freestyle," "zi4you2shi4."
Add a "xing4" to the end of the noun. The word "xing4," as in "tan2xing4" (elastic), represents "nature" and can be added to the end of a noun to convert it to an adjective representing the essence of the associated noun. For example, when adding "xing4" to the word for "particularity," "te4shu1," you will yield "te4shu1xing4," meaning "particularly."