[ ey-sin-tak-tik ]
/ ˌeɪ sɪnˈtæk tɪk /
adjective Grammar. (of compounds)
consisting 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.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019