sticky

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Having the property of adhering or sticking to a surface; adhesive.
• adjective Covered with an adhesive agent.
• adjective Warm and humid; muggy.
• adjective Informal Painful or difficult.
• adjective Economics Tending to remain the same despite changes in the economy. Used of prices or wages.
• adjective Of or relating to an item of software or hardware, such as an onscreen graphic or mouse button, that remains active for a brief time after being touched.
• adjective Of or relating to content designed to increase the duration of visits to a website.

from The Century Dictionary.

• Like a stick; stiff.
• Having the property of adhering to a surface; inclining to stick; adhesive; viscous; viscid; glutinous; tenacious.
• Humid; producing stickiness; muggy: as, a disagreeable, sticky day.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Having the quality of sticking to a surface; adhesive; gluey; viscous; viscid; glutinous; tenacious.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective Able or likely to stick.
• adjective Potentially difficult to escape from.
• adjective computing, informal, of a setting Persistent.
• adjective computing, of a window Appearing on all virtual desktops.
• adjective Internet, of threads on a bulletin board Fixed at the top of the list of topics or threads so as to keep it in view.
• adjective Internet Compelling enough to keep visitors from leaving.
• adjective Of weather, hot and wind-less and with high humidity, so that people feel sticky from sweating.
• noun A sticky note, such as a post-it note.
• noun manufacturing A small adhesive particle found in wastepaper.
• verb Internet, bulletin boards to fix a thread at the top of the list of topics or threads so as to keep it in view.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• adjective moist as with undried perspiration and with clothing sticking to the body
• adjective hot or warm and humid
• adjective hard to deal with; especially causing pain or embarrassment
• adjective covered with an adhesive material
• adjective having the sticky properties of an adhesive