Adjective
Of or pertaining to grammar; of the nature of grammar; as, a grammatical rule.
According to the rules of grammar; grammatically correct; as, the sentence is not grammatical; the construction is not grammatical.
Source: Webster's dictionaryGroups are grammatical fictions; only individuals exist, and each individual is different. Robert Anton Wilson
Man, wow, there's so many things to do, so many things to write! How to even begin to get it all down and without modified restraints and all hung-up on like literary inhibitions and grammatical fears... Jack Kerouac
No important national language, at least in the Occidental world, has complete regularity of grammatical structure, nor is there a single logical category which is adequately and consistently handled in terms of linguistic symbolism. Edward Sapir
The utility of a language as a tool of thought increases with the range of topics it can treat, but decreases with the amount of vocabulary and the complexity of grammatical rules which the user must keep in mind. Economy of notation is therefore important. Kenneth E. Iverson
There were grammatical errors even in his silence. Stanisław Jerzy Lec
People are deeply imbedded in philosophical, i. e., grammatical confusions. And to free them presupposes pulling them out of the immensely manifold connections they are caught up in. Ludwig Wittgenstein