aphasia with impairment in the comprehension of spoken and written words, associated with effortless, articulated, but paraphrastic speech and writing; malformed words, substitute words, and neologisms are characteristic. When condition severe and speech is incomprehensible, it is called jargon aphasia. The patient often appears unaware of the deficit. SYN: fluent aphasia, impressive aphasia, posterior aphasia, psychosensory aphasia, receptive aphasia, Wernicke aphasia.