How to sign: having the properties of glue
Similiar / Same: gluey, glutinous, gummy, mucilaginous, viscid, pasty, viscous
How to sign: hard to deal with; especially causing pain or embarrassment
"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;
Similiar / Same: embarrassing, unenviable, awkward