1.a sticky substance sticks to other things; sticky objects are covered with a substance that sticks to things; sticky food contains a lot of sugar and has a sticky surface; sticky paper or plastic has glue on one side so that it sticks to a surface
2.sticky weather is hot and dampwith a lot of water in the air; if you feel sticky, your skin feels hot and slightly wet
3.a sticky situation is difficult or dangerous
4.a sticky website is one that interests visitors so that they continue looking at it for a long time