Synonyms for Linguistic:

adj.

•grammatical (adjective)
morphological, phonological.
•semantic (adjective)
grammatical, morphological, phonetic, philological, lexical, phonemic, lexemic, etymological, dialectal, syntactical, lingual, phonological.

n.

dialectal, philological, extinct, figuratively, creole, usagistic, phonetic, classical, dead, oral, morphological, figurative, idiomatic, scientific, lexemic, grammatical, disyllabic, syntactical, cognate, phonological, lexical, agglutinative, etymological, glottal, phonemic, exact. •linguistic (noun)
lingual.

Other synonyms:

•Other relevant words:
dialectal, philological, extinct, figuratively, creole, usagistic, phonetic, classical, dead, oral, morphological, figurative, idiomatic, scientific, lexemic, grammatical, disyllabic, syntactical, cognate, phonological, lexical, agglutinative, etymological, glottal, phonemic, exact.

Usage examples for linguistic

1. Combining these various functions in a mixture of metaphors, we may say that a linguistic sign is a fence, a label, and a vehicle- all in one. – How We Think by John Dewey

2. Linguistic and Literary Study. – A Short History of French Literature by George Saintsbury