There's been a whole lot of confusion over the word Nephilim.No one today really knows what it means. It is related to the verb series “to fall” (naphal) in Hebrew, which is why some direct this to fallen angels or more appropriately, their offspring.However, this also gives strong support to the view that men had fallen away from God. It was these two concepts that helped give rise to the various views we've got today. Many have associated the Nephilim with giants. Giant traits may not have been limited to Nephilim alone: Goliath, a giant, was not considered Nephilim. As mentioned, the term Nephilim is unclear in definition. So in light of what's known about Nephilim, your question can't really be answered with any degree of accuracy. :)
