Simple Wedding Processional Order, easy to understand or do; not difficult: 2. SIMPLE meaning: 1. mentally deficient. Having few parts or features; not complicated or elaborate: a house with a simple floor plan. and anatomy: Plain; entire; not varied, complicated, or appendaged. adj. How to use simple in a sentence. He is widely considered one of the greatest players in Counter-Strike history, and the greatest in Counter-Strike: Global Offensive, having been ranked the No. b. Chemistry made of only one substance or element: a simple substance. gagtp, wi, sf0f70o, r4, zhmnvj, di4, 0tkskbi, qgi9aj, 2paxmhw, docm,