• The correct spelling is - Antediluvian. (অপশন 'গ')
• Antediluvian (adjective) English Meaning: of or relating to the period before the flood described in the Bible. Bangla Meaning: মহাপ্লাবনপূর্ব কালের উপযোগী বা মহাপ্লাবনপূর্ব-কাল সম্পর্কিত; সেকেলে; অপ্রচলিত।
Example Sentence: 1. The archaeologists unearthed antediluvian artefacts dating back thousands of years. 2. The antediluvian manuscript was written in a language that few scholars could decipher.
Source: 1. Oxford Dictionary. 2. Accessible Dictionary by Bangla Academy.