What does "ungrammatical" mean?
In violation of one or more of the rules and conventions of a language as defined by the grammar, resulting in unacceptable or incorrect usage.
adj ·Rare ·Advanced level
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"My Greek is not the tongue of Homer or Aeschylus but a sloppy ungrammatical sabir lacking Attic salt and tending to a saccharinity which sets my teeth on edge."
"These ungrammatical sentences resulted from the application of the additional rule F."
In violation of one or more of the rules and conventions of a language as defined by the grammar, resulting in unacceptable or incorrect usage.
Common synonyms include: barbarous, grammar free, ill-formed, improper, incorrect, poor diction.
These ungrammatical sentences resulted from the application of the additional rule F.
From un- + grammatical.