The Oxford Thesaurus An A-Z Dictionary of Synonyms - stickyadj.

1) gluey, gummy, viscous, tacky, glutinous, viscid, Colloq gooey: Children, please keep your sticky fingers off the car windows. 2) awkward, ticklish, tricky, sensitive, delicate, uncomfortable, discomfiting, discomforting, embarrassing, Slang hairy: Inviting Steve with his ex-wife might be a bit sticky, don't you think? 3 humid, clammy, dank, damp, muggy, close, sultry, oppressive, sweltering: The weather was oppressive and sticky, and they kept the fan on constantly.