<p>The resultative compound construction in Modern Chinese has certain functionally augmented forms, most commonly in the modal and aspectual dimensions. In this study, we introduce a new dimension of functional augmentation for resultative compounds: the illocutionary dimension. Specifically, we examine the morpheme <i>tɕi</i> in Xinchang Wu, which is infixed into resultative compounds and simultaneously functions as a quasi-perfect marker and a quasi-mirative marker. In its quasi-mirative function, <i>tɕi</i> highlights deviation from the speaker’s subjective expectation or desire regarding the result state. We analyze <i>tɕi</i> as a telicity-marking Inner Aspect head equipped with an additional illocutionary feature. Its speaker-oriented effect is derived through Agree with the clausal left periphery, and its infixal position results from verb movement. Moreover, we examine similar uses of <i>tɕi</i> outside resultative compounds and demonstrate that they are also accounted for by our formal analysis. Our findings reveal a grammatical strategy to systematically encode speaker attitude in the lexical domain and lend further support to the syntactic approach to Chinese resultative compounds.</p>