overnice
adjective
over·nice ˌō-vər-ˈnīs 
: excessively nice: such as
a
: excessively pleasant or agreeable
And I don't think they're being really overnice to me because of who I am. You notice that they treat everybody that way.
Darlene Love
Darlene Love b
: excessively particular
overnice scruples
overnicely adverb
overniceness noun
Our mothers told us that it wouldn't kill us to be nice. But overniceness, when it comes to the health risks of obesity, can kill. The Saginaw (Michigan) News
The Saginaw (Michigan) News 
Word History
First Known Use
14th century, in the meaning defined above
overnice
adjective
as in prissy
Synonyms & Similar Words
Relevance
- prissy
- spinsterish
- feminine
- old-maidish
- girlie
- womanly
- dudish
- womanlike
- girlish
- dandyish
- foppish
- girly
- unmanly
- sappy
- camp
- effeminate
- epicene
- sissy
- antimacho
- campy
- sissified
- womanish
- effete
Antonyms & Near Antonyms
- masculine
- manly
- virile
- manlike
- mannish