A form of cognitive bias in which a person is unable to think of other, more creative uses for an object aside from its traditional use.
Example: Whenever you devise a new use for an object, such as using a heavy object as a makeshift hammer, you are avoiding falling into the trap of functional fixedness.
Grinnell, R. (2009). Functional Fixedness. Psych Central. Retrieved on May 5, 2015, from http://psychcentral.com/encyclopedia/2009/functional-fixedness/