Adjectives

(s)gluey, glutinous, gummy, mucilaginous, pasty, sticky, viscid, viscoushaving the sticky properties of an adhesive
(s)stickymoist as with undried perspiration and with clothing sticking to the body“felt sticky and chilly at the same time”
(s)muggy, steamy, stickyhot or warm and humid“muggy weather”, “the steamy tropics”, “sticky weather”
(s)awkward, embarrassing, sticky, unenviablehard to deal with; especially causing pain or embarrassment“awkward (or embarrassing or difficult) moments in the discussion”, “an awkward pause followed his remark”, “a sticky question”, “in the unenviable position of resorting to an act he had planned to save for the climax of the campaign”
(s)stickycovered with an adhesive material