Webster's 1828 Dictionary
CLOYING
ppr. Filling; filling to satety, or disgust.
American Oxford Thesaurus
cloying
cloying adjective her romance novels are too cloying for my taste: sickly, syrupy, saccharine, oversweet; sickening, nauseating; mawkish, sentimental, twee; informal over the top, mushy, slushy, sloppy, gooey, cheesy, corny, cornball, sappy.
Oxford Thesaurus
cloying
cloying adjective the romance never becomes cloying: sickly sweet, sugary, syrupy, saccharine, honeyed, oversweet; sickening, nauseating, disgusting; mawkish, maudlin, sentimental, over-sentimental; Brit. twee; informal over the top, OTT, mushy, slushy, sloppy, cutesy, cute, gooey, drippy, treacly, cheesy, corny, icky, sick-making; N. Amer. informal cornball, sappy.
Sanseido Wisdom Dictionary
cloying
cloy ing /klɔ́ɪɪŋ /形容詞 〈食べ物などが 〉甘ったるい ; 飽き飽きさせる, うんざりさせる ; 愛想がよすぎる .~ly 副詞