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. (2016). Functional Fixedness. Psych Central. Retrieved on June 23, 2017, from https://psychcentral.com/encyclopedia/functional-fixedness/