There are a variety of synonyms that can be used in place of the phrase "not delayed." Some potential options include "on time," "prompt," "timely," "punctual," "scheduled," "uninterrupted," and "unimpeded." Depending on the context in which the phrase is being used, some of these options may be more appropriate than others. For example, "on time" may be a more natural fit for discussing transportation or appointments, while "unimpeded" may be more relevant within a discussion of workflows or progress. Regardless of the specific synonym utilized, the goal is to convey a sense of efficiency and reliability, indicating that things are happening as intended and without unnecessary delays.