noun. 1. the state or condition in which there is an absence of fitness or well-being. 2. With regard to biology, the incapacity of an living being to produce healthy and stable offspring capable of surviving within a given environment.

UNFITNESS: "The unfitness aspect of many American's has led to a nationwide obesity epidemic."
Cite this page: N., Pam M.S., "UNFITNESS," in PsychologyDictionary.org, April 29, 2013, https://psychologydictionary.org/unfitness/ (accessed May 10, 2021).