成瘾性 chéngyǐnxìng addictiveness Definitions Defs Origin Strokes Stroke Words Sentences Sents 成瘾 成癮 chéngyǐn nounverb addiction state of physiological or psychological dependence on a substance or activity性 xìng affix [-ity] Suffix used after verbs or adjectives to form nouns expressing a state, quality, or scope, similar to English "-ity", "-ness", or "-ism".