This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Of, relating to, or marked by hypercorrection.

adj. incorrect because of a mistaken idea of standard usage

v. To change (a word or phrase) to an incorrect form in the mistaken belief that it is standard usage.

"It was a nonstandard usage that some grammarians would call "hypercorrect" because the error was made by trying too hard to be correct."

Hypercorrect   

hypercorrectness    hyper-corrective    hyper-correctness    hyper-correction    hypercorrection    hypercorrective