Things that easily adhere to other things are sticky. Glue and tape are sticky. So is a wad of chewed gum — especially when you step in it. Yuck.

Many things are meant to be sticky, like the sticky notes you use for bookmarks or the sticky lint roller you use to remove cat hair from your pants. You can also describe hot, humid weather as sticky, or an awkward problem you can't easily shake: "They brought up a number of sticky issues in the meeting this morning." If someone has "sticky fingers," it means they're inclined to steal things.

Definitions of sticky
  1. adjective
    having the sticky properties of an adhesive
    synonyms: gluey, glutinous, gummy, mucilaginous, pasty, viscid, viscous
    tending to adhere
  2. adjective
    covered with an adhesive material
    tending to adhere
  3. adjective
    hot or warm and humid
    sticky weather”
    synonyms: muggy, steamy
    covered or soaked with a liquid such as water
  4. adjective
    moist as with undried perspiration and with clothing sticking to the body
    “felt sticky and chilly at the same time”
    covered or soaked with a liquid such as water
  5. adjective
    hard to deal with; especially causing pain or embarrassment
    “a sticky question”
    synonyms: awkward, embarrassing, unenviable
    difficult, hard
    not easy; requiring great physical or mental effort to accomplish or comprehend or endure
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