Is your writing or speech lacking variety because you keep using the same word, "carbondated"? Try replacing it with one of these synonyms: 1. Radiocarbon-dated 2. Carbon-isotopic-dated 3. Carbon-14-dated 4. Radioisotope-dated 5. Chronometrically-dated 6. Isotopically-dated 7. Carbon-dated by mass spectrometry 8. Carbon-dated by accelerator mass spectrometry These synonyms will make your writing or speech not only sound more varied, but also more precise. Each synonym has a slightly different nuance, based on the method of dating or the precision of the measurement. Using different synonyms can help you convey the complexity of the topic and show your mastery of the subject.