1) Adorable but cloying 2) Cloyingly adorable 3) Coyly mannered 4) Excessively precious 5) Forcedly and consciously cute 6) Like Care Bears 7) Overly adorable 8) Overly precious 9) Pie preceder 10) Precious 11) Slang for sickenly sweet 12) Too coy 13) Too precious 14) Too precious or sweet 15) Too, too precious 1) Coy 
Cutesy is slang for sickenly sweet.
forcedly and consciously cute; coyly mannered: cutesy greeting cards, with animals peeking from behind flowers.