The phrase "scaring stiff" implies a state of extreme fear, but there are numerous antonyms for this term. Instead of feeling scared stiff, one could feel at ease, comfortable, untroubled, or even fearless. Confidence, bravery, assurance, and peace are also antonyms of "scaring stiff." In contrast to being paralyzed with fear, one could feel exhilarated, adventurous, or excited. However, it's important to remember that everyone's experiences and reactions to fear and other emotions are unique, and there is no "right" or "wrong" way to feel in any given situation.