noun. 1. a condition of over-approximating one's capacity to perform or under-approximating the capacity of an opponent to perform. 2. an unsupported belief or unrealistically good presumption that a favored result will arise.

OVERCONFIDENCE: "Overconfidence is generally not an attractive trait in anyone."
Cite this page: N., Pam M.S., "OVERCONFIDENCE," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/overconfidence/ (accessed May 8, 2021).