1."inspiring an overwhelming feeling of reverence, admiration, or fear; causing or inducing awe: anawesome sight."
2."showing or characterized by reverence, admiration, or fear; exhibiting or marked by awe.
3. "Slang. very impressive"
"The fear of the Lord is the beginning of knowledge; fools despise wisdom and instruction." Prov 1:7
Fear of the Lord is a deep reverence for God, to be in awe of God. As we get to know God, to learn more and more about Him we get to see how Awesome He is.
God has no beginning and no end. He created us purely out of love not because He needs anything from us. Even after we turn our back on Him again and again He keeps coming to save us. He keeps loving us even when we refuse to love Him, He does great and wonderful things for us even when we don't deserve it.
God breathe life into us - Gen 2:7-8
We all turned our backs on Him - Rom 3:23
He still gave us His Son to be be our mediator, our Saviour - John 3:16