WordReference Random House Unabridged Dictionary of American English © 2026
a•syn•tac•tic
(ā′sin tak′tik),USA pronunciation adj. [Gram.](of compounds)
- Grammarconsisting of morphemes that are combined differently from their mode of combination as separate words in a phrase, as bookstore, which is an asyntactic compound, while the same elements are combined syntactically in store for books.
- a-6 + syntactic 1875–80