nongrammatical
adjective
non·gram·mat·i·cal ˌnän-grə-ˈma-ti-kəl 
: not grammatical:
a
: not of or relating to grammar
the nongrammatical features of language
b
: not following rules of grammar : ungrammatical
a nongrammatical sentence
Example Sentences
Recent Examples on the Web Runyon is writing in a nongrammatical, break-the-rules style. 
San Diego Union-Tribune, 2 July 2019 Runyon is writing in a nongrammatical, break-the-rules style. San Diego Union-Tribune, 2 July 2019
San Diego Union-Tribune, 2 July 2019 Runyon is writing in a nongrammatical, break-the-rules style. San Diego Union-Tribune, 2 July 2019 Word History
First Known Use
1888, in the meaning defined above
nongrammatical
adjective
as in ungrammatical
Synonyms & Similar Words
Relevance
- ungrammatical
- uneducated
- substandard
- regional
- incorrect
- dialectical
- unlearned
- nonstandard
- dialectal
- dialectic
- unbookish
- nonliterary
- slang
- slangy
- unliterary
- vernacular
- nonformal
- informal
- colloquial
- conversational
- vulgar
Antonyms & Near Antonyms
- literary
- formal
- standard
- learned
- bookish
- undialectical
- correct
- proper
- grammatical
- educated
- genteel