How to write Pinyin?

Stickiness, such as glue or paste, can make one object adhere to another: stickiness, mucus, clay, glutinous rice.

The difference between sticking to people and sticking to people: The word "sticky" is one of the abolished 15 Chinese characters in the Dictionary of Modern Chinese Commonly Used Words jointly promulgated by the State Language Commission and the State Press and Publication Administration on March 25th, 0988. The pronunciation of "sticky" is nián, which means that one object can be attached to another like glue or paste. Its usage is like the common words "armyworm", "sticky", "mucous membrane", "glutinous rice" and "clay", which are usually adjectives.

The word "Zhan" can only be pronounced as "Zhan" in daily use except that it still retains the sound of "nian" when used as a surname. Its meanings are as follows: ① Sticky substances are connected or attached to other things, such as "candy sticks together", "eating honeydew melon sticks to teeth" and "hands"; Stick this thing on another thing with glue or paste, such as "sticking an envelope", "sticking a slogan" and "He looks like an old man with a white beard on his mouth". From the part of speech, it only has verb usage.

So grammatically, there is only the word "clingy" and there is no word "clingy".