The term "nailbiting" typically describes a situation that is exciting, suspenseful, or emotionally intense. Some antonyms for nailbiting could include "boring," "dull," "uneventful," or "predictable." For example, a school dance might be described as "nailbiting" if there is a lot of anticipation and excitement, but a routine homework assignment would be considered "dull" or "uneventful." Similarly, a movie that keeps audiences on the edge of their seats might be "nailbiting," but a slow, uneventful documentary could be described as "boring" or "predictable." In essence, the opposite of a "nailbiting" experience is one that fails to engage or excite.