The word "outdared" means to have been challenged or dared to do something and accomplishing it with courage or bravery. Antonyms, that is the opposite meaning of "outdared," may include words such as "hesitated," "cowardly," "timid," or "fearful." If someone is hesitant, they may not take up a challenge, while a coward or fear-filled person may run away from the dare. A timid individual may lack the confidence to carry out a daring action, and they may show signs of reluctance or hesitation. All in all, antonyms of "outdared" show the opposite traits of bravery and courage.