||Joh, Yoon-kyoung. (2015). Adjectival Passives and the Generative Lexicon. The Linguistic Association of Korea Journal, 23(2), 19-36. For adjectival passives, it is generally known that a conversion process is necessary to shift the verbal category into an adjective. However, there is no consensus on exactly what kind of conversion process it must be. This paper would like to propose a type coercion mechanism introduced by the Generative Lexicon Theory for adjectival passives, considering their two sub-types. Kratzer (2000) and many others identify two types of adjectival passives: resultant state adjectival passives and target state adjective passives. This paper claims that the two types of adjectival passives can be generated if we take into account the Qualia Structure. When the agentive role is specified by the natural kind in the conversion process, the adjectival passive has the resultant state reading. However, when the agentive role is characterized by the causal chain in the coercion process, the adjectival passive has the target state interpretation.