1.Definition: covered with an adhesive material

2.Definition: hard to deal with; especially causing pain or embarrassment

"A sticky question"

Related Adjective(s):awkward, embarrassing, unenviable

3.Definition: having the sticky properties of an adhesive

Related Adjective(s):gluey, glutinous, gummy, mucilaginous, pasty, viscid, viscous

4.Definition: hot or warm and humid

"Sticky weather"

Related Adjective(s):muggy, steamy

5.Definition: moist as with undried perspiration and with clothing sticking to the body

"Felt sticky and chilly at the same time"