There are many words that can be used as synonyms for "that may be accurately found out." Some options include ascertainable, determinable, verifiable, provable, conclusive, unmistakable, and evident. These words all suggest a level of certainty and accuracy in discovering information or facts. They often imply that the information can be easily confirmed or established through evidence or investigation. While each of these synonyms has subtle nuances, they all convey the sense of something that can be known or understood with confidence. When looking for alternative phrasing, these synonyms can help to add variety and precision to your writing.