The opposite of "more unintimidated" is "less brave" or "more intimidated". When a person is less unintimidated, it means that they are more hesitant, nervous, and fearful than someone who is unintimidated. Antonyms for this phrase can include words like timid, apprehensive, faint-hearted, or cowardly. These words indicate a lack of confidence, courage, or bravery in the face of danger or challenge. However, it's important to remember that being unintimidated doesn't always mean being fearless or reckless. It simply means that someone is not easily cowed or intimidated by external factors like fear, pressure, or aggression.