What are the opposite words for heebie-jeebies?

The word "heebie-jeebies" is often used to describe a feeling of unease or anxiety. However, there are a number of antonyms that can help to describe the opposite feeling. Some possible antonyms for "heebie-jeebies" might include calmness, serenity, tranquility, composure, relaxation, ease, and comfort. These words suggest a sense of peacefulness and contentment, rather than the jittery, anxious feeling associated with the heebie-jeebies. Other antonyms might include confidence, bravery, courage, and fearlessness, as these words connote a sense of strength and determination, which can help to counteract feelings of uncertainty or anxiety.