Antepenultimate isn’t a word you’ll hear often; it's mostly used in specific or formal contexts. His antepenultimate lecture was particularly memorable.
Pro Tip 2/3
Precise Order
Use antepenultimate for clarity when the order in a sequence is essential. Check the antepenultimate chapter for the important character revelation.
Pro Tip 3/3
Misinterpretation Risk
Be aware that some might confuse antepenultimate with ultimate; specify if needed. Just to be clear, by antepenultimate, I mean the third from last one.