Entry 1 sense Webster, 1913 Undauntable /(ŭn*dänt"ȧ*b'l)/ · Un·daunt·a·ble · IPA 01 a. Incapable of being daunted; intrepid; fearless; indomitable. 1. Incapable of being daunted; intrepid; fearless; indomitable.