Informal Deliberately or affectedly cute; precious: a cutesy boutique for children's fashions. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "cutesy" in a sentence
"My guess is that it started online (or close to it, like in cutesy IM language), similar to other grammatical borrowings (的说 being another prominent example)."
"And did you know, the word 'twee' in English, which means overly-cutesy, is the Dutch word for 'two'?"
"Alas, she tells it in cutesy, sophomoric prose, such as: “So Gram pinned her hopes on moi … Come awwwwwn … yadda, yadda.”"