<p><strong>Adjective</strong></p><ul><li>having the property of adhering, as glue; adhesive.</li><li>covered with adhesive or viscid matter: sticky hands.</li><li>(of the weather or climate) hot and humid: It was an unbearably sticky day.</li><li>requiring careful treatment; awkwardly difficult: a rather sticky diplomatic problem; Breaking the news is going to be sticky.</li><li>Informal. unpleasant; unfortunate; nasty: The villain of the story meets a sticky end.</li></ul><p><strong>Noun</strong></p><ul><li>(plural stickies) one of a number of small sheets of paper on a pad, each having an adhesive backing that allows it to be positioned and repositioned on smooth surfaces.</li></ul>