Research Aim: Atheism is a belief in the non-existence of any God. In the contemporary world, scientific advancements and modern technology have made significant breakthroughs that have unravelled many unexplained phenomena and have consequently changed people’s lives and beliefs. As people’s reliance on science and technology has increased, anything that cannot be proven logically or through scientific evidence is rejected, even if it is God’s existence. In this research past, literature will be critically analyzed to identify what atheism means in today’s modern world and how it has altered people’s beliefs.