awkward (or embarrassing or difficult) moments in the discussion
an awkward pause followed his remark
a sticky question
in the unenviable position of resorting to an act he had planned to save for the climax of the campaign
covered with an adhesive material
Microsoft Computer Dictionary
adj. In reference to a Web site, properties such as targeted content or services that increase the amount of time users choose to spend at the site and increase user’s desire to return to the site repeatedly.