syntactically

syntactic +‎ -ally

syntactically (comparative more syntactically, superlative most syntactically)

1. According to the rules of syntax.
   • 1965 June 4, Shigeyuki Kuroda, “Generative grammatical studies in the Japanese language”, in DSpace@MIT‎, retrieved 2014-02-24:

     Thus, there is a third kind of judgment, which we shall call characterization. The wa-phrase and ga-phrase serve syntactically to distinguish predicational judgment not only from nonpredicational description but also from characterizational judgment.

   The sentence was syntactically correct, but made no sense.

• syntactic
• syntactical
• didactic
• grammatical