TRUANCY By N., Pam M.S. - April 29, 2013 noun. lacking permission for absence from school. TRUANCY: "The teacher says if I get one more truancy, I will have to serve detention." Related Psychology Terms ACENESTHESIA PHOCOMELIA ACQUIESCENCE SCHOOL REFUSAL AMORPHAGNOSIA IRRATIONALITY WITZELSUCHT SAFETY NEEDS ATHYMIA AESTHETICS Cite this page: N., Pam M.S., "TRUANCY," in PsychologyDictionary.org, April 29, 2013, https://psychologydictionary.org/truancy/ (accessed January 21, 2020).