When trying to convey a level of certainty or probability, the phrase "certain degree" can feel vague or inadequate. Thankfully, there are numerous synonyms that can help dial in the level of confidence being expressed. For example, "finite extent" suggests a definitive limit to the degree being discussed, while "considerable measure" emphasizes a high degree of certainty. Words like "incontrovertible" or "unequivocal" indicate an unshakable level of certainty, while "tentative" or "preliminary" suggest an initial assessment that could change. Other options include "moderate amount," "fairly certain," or "some confidence," depending on the desired level of certainty.