Overly friendly or intimate.
Common or repeated to the point of being unnoticed or annoying.
So acquainted with something, that one doesn't notice it, or is annoyed by it.
Excessively sweet in action or disposition, especially if romantic or sentimental to the point of ridiculousness; sickly sweet, syrupy.
Resembling granulated sugar; saccharoid.
Of or relating to saccharin (“a white, crystalline powder, C₇H₅NO₃S, used as an artificial sweetener in food products”).
Sentimentalism.