This adjective describes what is eternal or everlasting—existing without temporal limits. In Romans 1:20, Paul declares God's 'eternal power' has been clearly seen from creation. In Jude 6, it describes the 'eternal chains' that bind fallen angels in darkness awaiting judgment. The word emphasizes perpetuity and timelessness, that which transcends temporal boundaries. Classical Greek distinguished this term (everlasting, without beginning or end) from aiōnios (age-lasting, potentially with a beginning). It's the quality of divine attributes and ultimate realities that exist outside time's flow.