"Ironwilled" is an adjective that describes someone with an unyielding determination and strength of character. Some possible antonyms to this word could include feeble-minded, weak-willed, indecisive, fickle, and uncertain. Feeble-minded refers to someone lacking in strength or intelligence, while weak-willed suggests a lack of determination or willpower. Indecisive implies a lack of confidence or clarity in decision-making, while fickle suggests a tendency towards inconsistency and changing one's mind. Uncertain refers to a lack of conviction or clarity in one's beliefs or actions. All of these antonyms stand in contrast to the term "ironwilled," suggesting weakness, vacillation, or uncertainty instead of decisive, unwavering strength.