Saccharine

Adjective

 * 1) Of or relating to saccharin or sugar.
 * 2)  Excessively sweet in action or disposition; syrupy.
 * 3) Sentimental or romantic to the point of ridiculousness.

Synonyms

 * precious, syrupy, twee

Thesaurus
candied, cloying, deferential, disarming, honeyed, insinuating, insinuative, luscious, mawkish, oversweet, rich, sickly-sweet, silken, silky, sugared, sugary, sweet, syrupy

Etymology
From saccharum: + -ine:.

Noun

 * 1) saccharin