hebetescere Save DMLBS hebetescere [CL] 1 to become blunt. CathA (v. hebescere 1). 2 (of person) to become ineffective, lacking in keenness. 14‥ heu! racio moritur, precio judex hebetescit, / fraude fides premitur, pietas ‥ recessit Pol. Poems II 253.