UNDERINTENSITY By N., Pam M.S. - April 29, 2013 noun. a state wherein one or all of the following are beneath the optimal level: stimulation, dedication, effort, assertiveness, and attentional concentration. UNDERINTENSITY: "The underintensity represented isn't appealing to researchers." Related Psychology Terms OVERINTENSITY PRINCIPLE OF OPTIMAL STIMULATION OPTIMAL INTENSITY OPTIMAL LEVEL AGRANULOCYTOSIS THERAPEUTIC WINDOW W-STATE CONCENTRATION-CAMP SYNDROME OPTIMAL LEVEL THEORY TRIANGULAR THEORY OF LOVE Cite this page: N., Pam M.S., "UNDERINTENSITY," in PsychologyDictionary.org, April 29, 2013, https://psychologydictionary.org/underintensity/ (accessed May 18, 2019).