syrupy
syr-up-y
adjective
Resembling syrup in thickness, stickiness, or sweetness.
"The pancakes were covered in a syrupy sauce."
adjective
Excessively sweet or sentimental, often in an insincere way.
"His syrupy voice grated on her nerves."
Thesaurus
Synonyms: sweet, cloying, saccharine, treacly, honeyed, sugary, honied, viscous, thick