The quality, state, or condition of being antigrammatical; the degree to which something violates or opposes grammatical rules.
From anti- + grammatical + -ness (noun-forming suffix). Created by adding -ness to antigrammatical to nominalize the adjective and discuss it as an abstract quality.
The antigrammaticalness of texting language—with its dropped words and shorthand—is actually revealing how flexible and creative human language really is under practical constraints!
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