Paragrammatism is the confused or incomplete use of grammatical structures, found in certain forms of speech disturbance.
Paragrammatism is roughly synonymous with "word salad," which concerns the semantic coherence of speech rather than its production.
[2] Since Kleist introduced the term in 1916,[3] paragrammatism has denoted a disordered mode of expression that is characterized by confused and erroneous word order, syntactic structure or grammatical morphology (Schlenck 1991:199f).
By contrast, expression in fluent aphasia usually appears grammatical, albeit with disruptions in content.
Despite this persistent impression, errors of sentence structure and morphology do occur in fluent aphasia, although they take the form of substitutions rather than omissions.